Canon iR8500 Servise Manual
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Canon iR8500 Servise Manual

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Download this manual See also: Service Manual, Function Manual
iR8500
REVISION 0
FY8-13H3-000
MAR. 2001
CANON iR8500 REV.0 MAR. 2001 PRINTED IN U.S.A.
COPYRIGHT© 2001 CANON INC.
2000 2000 2000 2000

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Summary of Contents for Canon iR8500

  • Page 1 REVISION 0 FY8-13H3-000 MAR. 2001 CANON iR8500 REV.0 MAR. 2001 PRINTED IN U.S.A. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000...
  • Page 2 Application This manual has been issued by Canon Inc. for qualified persons to learn technical theory, installation, maintenance, and repair of products. This manual covers all localities where the products are sold. For this reason, there may be information in this manual that does not apply to your locality.
  • Page 3 Provides a description of a service mode. Provides a description of the nature of an error indication. Refers to the Copier Basics Series for a better understanding of the contents. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 4 INTRODUCTION 2 Outline of the Manual This Service Manual provides basic facts and figures about the iR8500 and the side paper deck designed as an accessory to the copier; use the information for servicing the machine in the field, thus ensuring the initial product quality.
  • Page 5 INTRODUCTION 3 Configuration of the iR8500 System The iR8500 may be configured as follows: [1] Saddle Finisher-K3/K4 [5] Side Paper Deck-M1 [2] Inserter-B1 [6] Finisher-K1/K2 [3] Paper Folding Unit-C1 [7] Network LIPS Printer Kit-B1 [4] iR8500 [8] DADF-J1 (standard) F00-300-01 Some products are not sold in certain sales areas.
  • Page 6 Reset Stop Guide Start Additional Function Clear Processing Error /Data Power [1] Control panel power switch [3] Main power switch [2] Operation/Memory lamp [4] Heater switch F00-300-02 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 7: Cdrh Ordinances

    US unless they bear a certificate of compli- ance. The following is the label that indicates compliance with the CDRH ordinances, and it must be found on all laser products sold in the US. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 8 30-2, SHIMOMARUKO, 3-CHOME, OHTAKU, TOKYO, 146, JAPAN. MANUFACTURED: THIS PRODUCT CONFORMS WITH CQRH RADIATION PERFORMANCE STANDARD 21CFR CHAPTER 1 SUBCHAPTER J. F00-402-01 The description may vary from model to model. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 9 Take full care whenever servicing areas of the machine behind these covers. This label is attached to all covers inside the machine where hazards from laser light exist. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 10 ADVARSEL! - LASER STR LING, N R DENNE ER BEN. UNDG BESTR LING. ADVARSEL - LASERSTR LING N R DEKSEL PNES. UNNG EKSPONERING FOR STR LEN. F00-403-01 viii COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 11: Safety Of Toner

    In addition, avoid bringing toner into contact with plastic material, as it tends to dissolve easily. Do not throw toner into fire to avoid explosion. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 12: Table Of Contents

    DADF ..2-10 2.4 Image Formation System ..2-27 2.1.8 Detecting Dust in Stream 2.4.1 Changes in the Image Reading Mode ....2-12 formation System ....2-27 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 13 HDD ........3-10 2.2 Input Image Processing ....3-9 2.4 Processing Output Image ..3-10 2.2.1 Image Data from the Reader 2.4.1 Smoothing ......3-10 Unit ........3-9 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.1 MAR. 2001...
  • Page 14 Work Procedure 2 ....5-19 3 Scheduled Servicing Work ....5-9 5 Mechanical System ......5-23 4 Scheduled Service Chart ....5-13 5.1 No. 1 Mirror Base ....5-23 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 15 5.7.1 Removing the BD Unit ..5-50 Clutch ........ 5-70 5.8 Components Around 5.13.2 Removing the Registration the Process Unit ....... 5-51 Brake Clutch ...... 5-71 xiii COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.1 MAR. 2001...
  • Page 16 5.22.2 After Replacing the DC Feeding Unit Cover ... 5-91 Controller PCB ....5-113 5.18.4 Removing the Rear 5.22.3 Removing the Differential Cover ......... 5-91 PCB ........5-113 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 17 (ADF mode) ....... 6-17 2.4.3 Orientation of the Feeding 2.2 Scanner System ......6-18 Roller of the Deck/Cassette 2.2.1 Replacing the Scanner Pickup Assembly ....6-21 Drive Cable ......6-18 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.1 MAR. 2001...
  • Page 18 2.5 Fixing System ......6-37 Sensor ........6-67 2.5.1 Points to Note When 2.10 Checking Mounting the Fixing the Photointerrupters ....6-68 Heater ......... 6-37 3 Troubleshooting Image Faults ..6-74 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 19 4.1.19 E067 ......... 6-106 (vertical) ......6-86 4.1.20 E068 ......... 6-107 3.3.12 The copy has white spots 4.1.21 E069 ......... 6-108 (horizontal) ......6-88 4.1.22 E100 ......... 6-109 xvii COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.1 MAR. 2001...
  • Page 20 4.1.85 The drum heater fails to (DC controller PCB), E711- operate ......6-146 0003 (Main controller 4.1.86 The “Add Toner” message PCB) ........ 6-124 fails to go OFF ....6-146 xviii COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 21 Backing Up Data ..... 6-211 6.4 Fans ........6-166 8.2.4 Downloading Backup 6.5 Sensor 1 ......... 6-168 Data ........6-216 6.6 Sensor 2 ......... 6-170 8.2.5 Managing Backup Data ... 6-220 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.1 MAR. 2001...
  • Page 22 5 BOARD .......... S-122 2.2 I/O ..........S-23 5.1 OPTION ......... S-122 2.3 ADJUST ........S-49 ERROR CODE 1 Error Codes ........E-1 1.1 Introduction ....... E-1 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 23: Chapter 1 Introduction

    CHAPTER 1 INTRODUCTION COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 24: Features

    <600 sheets>* Cassette 4: 550 sheets <600 sheets>* Manual feed tray: 50 sheets Side Paper Deck-M1 (accessory): 3500 sheets <4000 sheets*> * If paper of 64 g/m COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 25: Various Delivery Handling (W/ Accessories)

    1.7 High-Level Printing Functions Supporting Uses on a Net- work • The addition of the Network LIPS Printer Kit-B1 (accessory) will bring about high-level network printing functions. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 26: Specifications

    Static separation Cleaning Cleaning blade Fixing By heater roller 100 V: 100 W (main) + 400 W (sub) 208/230 V: 900 W (main) + 600 W (sub) T01-201-02 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 27 279.4 × 431.8 mm max. (11 × 17), Inch STMT min. (vertical feed) Double-sided A3 max., A5 min. (vertical feeding) 279.4 × 431.8 mm max. (11 × 17), Inch STMT min. (vertical feed) T01-201-03 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 28 • Recycled paper (64 to 80 g/m A3, B4, A4, B5, A5R, A4R, B5R, 279.4 × 431.8 mm (11 × 17), LGL, LTR, LTRR, STMT (vertical feed) T01-201-04 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 29 • Thick paper (90 to 200 g/m A3, B4, A4, B5, A4R, B5R, LTR, LTRR • 3-hole paper (horizontal feed) LTR, LTRR • Tab sheet A4, LTR T01-201-05 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 30 • Colored paper (Canon-recommended) B4, A4, A4R • Thick paper (90 to 200 g/m A3, B4, A4, B5, A4R, B5R, LTR, LTRR • 3-hole paper (horizontal feed) LTR, LTRR T01-201-06 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 31 Postcard (Jpn gvn; 4-card; horizontal feed only) • Thick paper (90 to 200 g/m A3, B4, A4, B5, A4R, B5R, LTR, LTRR • 3-hole paper (horizontal feed) LTR, LTRR T01-201-07 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 32 Staple Cartridge-H1 Stapler-H1 Paper Folding Unit-C1 Inserter-B1 Side Paper Deck-M1 Index Paper Attachment-A1 Card Reader-D1 * The values within brackets indicate the use of the ADF. T01-201-08 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 33 Dimensions (approx.) Weight 280 kg (approx.; including ADF) Consumables storage Paper Keep wrapped to avoid humidity. Toner Avoid direct sunshine; keep at 40°C/85% or less. T01-201-09 1-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 34 IV (122.4 %) A5 → B5 B4 → A3 V (115.4 %) B5 → A4 Copier delivery, Auto paper selection ON, Auto density adjustment ON, Non-sort, Deck/Cassette T01-201-10 1-11 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 35 * Cannot be used as an original for placement in the ADF. Copier delivery, Auto paper selection ON, Auto density adjustment ON, Non-sort, Deck/ Cassette T01-201-11 The above specifications are subject to change for product improvement. 1-12 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 36 46 kg (approx.) Power supply DC power supplied by host machine Operating environment Same as host machine T01-202-01 The above specifications are subject to ange for product improvement. 1-13 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 37: Names Of Parts

    [4] Main power switch [10] Left deck [5] Manual feed tray [11] Cassette 3 [6] Right upper cover [12] Cassette 4 [7] Right lower cover [13] Front cover F01-301-01 1-14 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 38 [7] Delivery cover [3] Grip/drum stop tool case [8] Parallel connector [4] Service Book case [9] Heater switch [5] Feeding assembly releasing lever [10] Leakage breaker F01-301-02 1-15 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 39: Cross Section

    [42] [41] [18] [19] [40] [20] [21] [22] [23] [24] [25] [39] [26] [38] [37] [36] [27] [28] [29] [30] [35] [31] [32] [33] [34] F01-302-01 1-16 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 40 [41] Upper fixing roller [20] Pre-transfer exposure LED [42] External delivery roller [21] Registration roller [43] No. 3 mirror [22] Transfer charging assembly [44] No. 2 mirror T01-302-01 1-17 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 41: Using The Machine

    Check Reset Stop Guide Start Additional Function Clear Processing /Data Error Power [1] Control panel power switch [3] Main power switch [2] Main power lamp F01-401-01 1-18 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 42 [7] Start key [16] Touch panel display [8] Clear key [17] Clip dent [9] Error lamp * Press to indicate the counter reading on the touch panel. F01-402-01 1-19 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 43: Special Features

    Use it to store or recall a copying mode. Recall Use it to recall any one of the most recent copying modes for use in printing. T01-403-01 1-20 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 44: User Mode

    Low*/High Sleep Mode Tray Designation Tray A: copier*/printer*/other* Tray B: copier*/printer*/other* Printing Priority 1 copier (priority)/2 printer/3 other Stack Bypass Standard Settings On/Off* * Factory default. 1-21 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 45 Photo Mode On/Off* Smart Scan Initial Setting: On*/Off Change Original Type: On/Off* Recognizable Text: Japanese/European/Rus- sian Standard Settings Store/Initialize Initialize Copy Settings Yes/No * Factory default. 1-22 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 46 Doc. Auto Erase: 1, 2, 3, 6, 12 hr; 1, 2, 3, 7, 30 days; none, 3 days* Initialize Photo Mode On/Off* Standard Scan Settings Store/Initialize Report Settings User’s Data List Print * Factory default. 1-23 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 47 Announce (On/Off*) Startup Time Settings (0 to 300 sec; 60 sec) Ethernet Driver Settings Auto Detect (On*/Off), Communication Mode, Ethernet Type, MAC Address * Factory default 1-24 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 48: Chapter 2 New Function

    CHAPTER 2 NEW FUNCTIONS COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 49: Basic Construction

    Fixing Separation Transfer Feeding Pickup Manual control feed tray Lower feeding assembly Side paper Left deck Right deck deck (accessory) Cassette 3 Cassette 4 Pickup/Feeding Block F02-101-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 50: Inputs To The Major Pcbs

    All day power J1901 J105 supply PCB Original J783 orientation J781 detection PCB Note: The in the figure indicates principal connections, NOT the flow of signals. F02-102-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 51: New Functions

    2.5 Pickup/Feeding System GP605 (iR600) base accommodation of higher speed accommodation of index sheet 2.2 Image Processing System accommodation of IP functions new PCB arrangement F02-200-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 52 CHAPTER 2 NEW FUNCTIONS COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 53: Outline Of The Original Exposure System

    Digital processing is used in combination under the following conditions: • in fixed mode, between 25% and 49.9% • in stream reading mode, between 25% and 84.9% COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 54: Preventing Overheating Of The Scanner Motor

    Operating mode Fan rotation control Stream reading or stand-by at rest Fixed mode for reduction between 60% and 68.9% full speed Fixed mode other than above half speed COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 55: Arrangement Of The Pcbs

    The reader controller PCB is connected with the main controller PCB by means of a communication cable inside the machine; as such, the reader unit may be connected using the same interface. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 56: Stabilizing The Scanning Lamp

    Then, when the ADF is opened farther to 30° or more [2], the sensor in the host machine goes ON, enabling original size auto detection. F02-201-04 2-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 57 (wrongly assuming the presence of an A3/LGR original). • iR8500 The iR8500 allows 5 sec for the detection of the size of originals to avoid affecting the first copy time. (It take 2 sec to turn on the fluorescent lamp.) 2-11 COPYRIGHT©...

  • Page 58: Detecting Dust In Stream Reading Mode

    ADF is opened and the copyboard glass is cleaned; while the message remains, the machine will operate in fixed reading mode only. 3 mm (7 points) Dust Shows as a black line F02-201-06 2-12 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 59 • The feeding belt of the ADF is excessively solid. • ‘CCD-ADJ’ or ‘LUT-ADJ’ is not executed properly. If such is the case, clean the belt and execute ‘CCD-ADJ’ or ‘LUT-ADJ’ once again. 2-13 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 60 CHAPTER 2 NEW FUNCTIONS 2-14 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 61: Outline Of The Image Processing System

    CCD, processes analog images, executes A/D conversion [2] Reader controller PCB: executes shading correction, executes auto density cor- rection, converts image data (4 channels → 2 channels) 2-17 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 62 Output unit D unit B Clock pulse D Clock pulse B Transfer unit D Transfer unit B Direction of charge transfer Direction of charge transfer F02-202-02 2-18 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 63: Ccd Adjustment

    One of the above needs to be selected to suit the conditions in question. After executing A, be sure to execute B; if adjustment still fails, execute C. Do not execute B or C alone. 2-19 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 64: Analog Image Processing

    [5] First half even-number pixel analog image signal [6] First half odd-number image digital image signal [7] Last half even-number pixel digital image signal [8] Last half odd-number pixel digital image signal F02-202-03 2-20 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 65: Digital Image Processing

    [3] Last half even-number pixel digital image signal [4] Last half odd-number pixel digital image signal [5] Even-number pixel digital image signal [6] Odd-number pixel digital image signal F02-202-04 2-21 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 66: Detecting The Orientation Of Originals

    In the case of the GP605 (iR600), the orientation of each original is checked for correc- tion, if needed. In the case of the iR8500, on the other hand, only the first original is checked, and the pages that follow are corrected based on the result of the detection.

  • Page 67: Outline Of The Laser Exposure System

    8-facet mirror Laser unit Collimating lens Laser scanner motor Laser mirror BD PCB BD mirror Photosensitive drum Laser A Laser B 18 pixels (760 µm) F02-203-01 2-25 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 68 Polygon mirror 8-faceted BD mirror/BD PCB Laser beam detection Laser driver PCB Laser activation control Laser scanner motor PCB Rotation control of the laser scanner motor T02-203-02 2-26 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 69: Outline Of The Image Formation System

    Potential sensor Pre-exposure LED Hopper Cleaner unit Developing assembly Dust-collecting roller Pre-transfer charging assembly Pre-transfer exposure LED Transfer guide Separation charging assembly Transfer charging assembly F02-204-01 2-29 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 70: Photosensitive Drum

    In addition, to make up for the possible decrease in the power of separation caused by a higher process speed, the following pre-transfer exposure LED is used: 2-30 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 71 LED and a point in time when the trailing edge of the image moves past it (F02-204-02). 2-31 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 72: Preventing Overheating Of The Developing Unit

    2-32 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 73 CHAPTER 2 NEW FUNCTIONS F02-204-03 2-33 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 74: 2-Speed Drive Of The Developing Cylinder

    Magnet roller drive clutch Main motor Hopper inside toner feed motor Magnet roller CL20 Moves toner found inside the hopper Developing cylinder to the developing assembly. Deceleration clutch F02-204-04 2-34 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 75 Developing cylinder 24VU DEV-CL-ON Magnet roller Developing cylinder clutch Toner stirring screw Main motor J514B CL20 Developing cylinder MM-FG Deceleration clutch MM-ON J516B 24VU DEV-CL-ON F02-204-05 2-35 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 76 CHAPTER 2 NEW FUNCTIONS 2-36 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 77: Pickup/Feed System

    The index cassette 3/4 selected on the control panel will be used as the source of index sheets. For details, see the User’s Guide. Index sheet attachment Index sheet Fixing sheet Backing F02-205-01 2-39 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 78 CHAPTER 2 NEW FUNCTIONS 2-40 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 79: Fixing System

    F02-206-01 and F02-206-02 show the major components of the fixing system. Cleaning web unit Cleaning web Upper fixing roller Main thermistor (TH1) Separation claw Sub thermistor (TH2) Thermal switch (TP1) Inlet guide Lower fixing roller F02-206-01 2-43 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 80 Cleaning web Driven by the web drive solenoid (SL2). Large-size (B4 or larger): goes ON twice Small-size (smaller than B4): goes ON once Inlet guide Fixed T02-206-02 2-44 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 81: System

    190˚C Passage of paper To recover to 198˚C in a decreases the short time, both main and temperature. sub heaters are turned on. F02-206-03b (208/230V model) 2-45 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 82: Transparency Mode

    205˚C 200˚C 198˚C 193˚C Temperature of transparencies F02-206-04 COPIER>OPTION>BODY>OHP-TEMP (switching of temperature setting in transparency mode) 0: 198°C [default] 1: 193°C 2: 188°C 3: 183°C 2-46 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 83: Thick Paper Mode

    (setting the down sequence start temperature thick paper mode) Setting 70 cpm 60 cpm Suspend Resume 194°C 193°C 183°C 198°C 189°C 188°C 178°C 193°C 184°C 183°C 173°C 188°C 2-47 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 84 Rage of saving of 25% Returns to normal temperature control in response to a second press on the Power Save key. 105˚C Rate of saving of 50% F02-206-05 2-48 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 85: Error Detection

    When the sub heater is powered, ‘0’. When ‘1’, the main heater goes ON. J512A When ‘0’, the AC relay is cut off. Relay PCB Relay-OFF F02-206-06 2-49 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 86 Setting 2 173°C 168°C 163°C 178°C Select setting 0 to give priority to image quality; on the other hand, select setting 2 to give priority to speed. 2-50 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 87 [15] Development fan (FM15) [16] System fan (FM16) [17] Deliver adhesion-proofing fan (FM17) [18] Scanner motor fan (FM20) [18] [13] [10] [15] [14] [16] [11] [17] [12] F02-207-01 2-53 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 88 0004 [17] FM17 Delivery adhesion- To cool paper being delivered 330007 proofing fan [18] FM20 Scanner motor cooling To cool the scanner motor 330005 T02-207-02 2-54 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 89 Separation fan (FM13) Laser scanner cooling fan (FM14) Developing fan (FM15) System fan (FM16) Delivery adhesion- proofing fan (FM17) : full speed : half speed F02-207-02 2-55 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 90 Scanner cooling fan (FM3) Stream reading fan (FM4) Inverter cooling fan (FM9) Power supply cooling fan 1/2 (FM11, FM12) : full speed : half speed F02-207-03 2-56 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 91 (PS108) Deck pickup/feeding roller M102 Deck separation roller Deck lifter motor Deck lifter cable Deck lifter lower limit detecting stitch (SW102) Lifter Copy paper F02-208-01 2-57 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 92 Deck feed sensor (PS106) Deck feed clutch (CL101) F02-208-02 DC controller PCB (body) J512 J228 Deck driver PCB (side paper deck) PS106 CL101 M101 PS101 CL102 SL101 F02-208-03 2-58 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 93: Chapter 3 Main Controller

    CHAPTER 3 MAIN CONTROLLER COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 94: Basic Operation

    The machine may be divided into the following functional blocks, and the controller unit belongs in the shaded block: Reader unit Control panel Controller unit Accessory Main controller PCB boards Printer unit F03-101-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 95: Outline Of The Electrical Circuit

    • Stores the boot program T02-102-01 Functions of the Control Components 1.2.3 Hard Disk Drive Name Description • Stores the system software • Stores image data for the Box function T03-102-02 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 96 CHAPTER 3 MAIN CONTROLLER Reader unit Accessory Control IC1010 board IC6501 (DIMM-ROM) panel (CPU) (CPU) (RAM) Main controller PCB Printer unit F03-102-01 Arrangement of the Major PCBs COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 97: Start-Up Sequence

    While the CPU reads the system software from the hard disk to the SDRAM, the control panel shows the following screen, and the progress of executing the start-up sequence is in- dicated using a progressive bar. Start-Up Screen Wait… Progressive bar F03-103-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 98: Start-Up Sequence

    Boot ROM Main controller PCB Access to the program during executing F03-103-02 E601-0000, 0001 Indicates an error in the image transfer data. E602-0001, 0002 Indicates a write/read error. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 99: Composition Of The System Software

    (for LCD indication). Upgrading of the system software calls for upgrading both system and language modules; for details, see 6. “Upgrading” in Chapter 6 “Troubleshooting.” COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 100: Inputs To And Outputs From The Major Pcbs

    J1015 Pixel/Line Differntial Conversion J1451 J1014 Note: The in the diagram indicates major connections, NOT the flow of the signals. F03-104-01 Wiring Diagram of the Major PCBs COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 101: Digital Image Processing

    Image memory SDRAM control I/O control Printer PG Image server Binary-binary density conversion Smoothing 4 or 2 Thickening 4 or 2 Printer unit F03-201-01 Block Diagram COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 102: Edge Emphasis

    8-bit image density signal in each mode (text, text photo, print photo) is converted into a 1-bit image density signal (binary). COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 103: Binary Processing (Dither Screen Method)

    The PDL output image is processed so that each horizontal line is given additional 1/2 pixels (1200 dpi) in up/down direction and each vertical line is given 1/2 pixels (1200 dpi) in left/right direction. 3-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 104: Binary-Binary Density Conversion (Read Image Output Only)

    CHAPTER 3 MAIN CONTROLLER 2.4.3 Binary-Binary Density Conversion (read image output only) This is used as an auxiliary means of density adjustment during copying operation. 3-11 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 105: Soft Counter

    *2: The machine is not equipped with a fax function, so that fax reception pages are not counted. T03-300-02 3-12 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 106 *2: The specifications of the counter may be changed or the display of the counter may be enabled/disabled in service mode. (However, the specifications of the counter 1 can- not be changed.) T03-300-03 3-13 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 107: Controlling The Power Supply

    All components are supplied with power (i.e., the same as in standby mode). Depending on the selected rate of saving, the control temperature of the fixing assembly is lowered to reduce the power consumption. 3-14 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 108: Low-Power Mode

    • When the control panel power switch (soft switch) is turned on. • When PDL data is received from the network (parallel port; electrically speaking, when the control panel remains off as in standby mode). 3-15 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 109: Off Mode

    The machine is in power supply off mode when its main power switch remains off. To re- turn from power supply off mode, the main power switch must always be turned on, and re- turn will be automatic to standby mode. 3-16 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 110: Chapter 4 Installation

    CHAPTER 4 INSTALLATION COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 111: Selecting The Site

    6. Install the machine so that it is at least 10 cm away from any wall, and there is adequate space for using the machine. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 112 This is particularly true of a low-humidity environment. Wrong 2 F04-100-02 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 113 120 cm min. 250 cm min. F04-100-03 Copier + Finisher + Side Paper Deck 10 cm min. 110 cm min. Copier 120 cm min. 310 cm min. F04-100-04 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 114: Unpacking And Installation

    5. Remove the side paper deck or the finisher (accessories) to prevent dam- age when bringing in or out the machine. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 115: Unpacking

    Take out the grip from the shipping box. Grip F04-202-02 Remove the grip cover (rear) from the right of the machine, and shift up the grip at the rear. Grip Grip cover F04-202-03 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 116 Likewise, holding the grip on the delivery side of the copier, lift the machine slightly, and remove the pad. Remove the plastic bag at the same time. F04-202-05 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 117 CHAPTER 4 INSTALLATION Step Work Checks/remarks F04-202-06 Shift up the two adjusters (front) on the bottom of the copier to make sure that they are unlocked. F04-202-07 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 118 Slope plates F04-202-09 Take out the parts and auxiliary materials from the cardboard box. Check to make sure that none of the attachments is missing. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 119 Remove the work after making sure that the machine is free of condensa- tion. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 120: Mounting The Scanner

    (When moving the machine, the scanner must be secured in place. Store away the Tape fixing for possible relocation.) Slide to detach. Scanner fixing F04-203-01 4-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 121: Mounting The Fixing Assembly

    (left) to free the transfer/separation charging assembly. Slide out the fixing/feeding unit to the front. Tape F04-204-01 Fixing/feeding assembly releasing lever F04-204-02 4-11 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 122 Tape fixing/feeding unit. Be sure to remove all foreign matter and residual glue of the tape from the feeding belt. F04-204-04 4-12 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 123 Remove the tape used to keep the tag in Screws place; then, remove the two fixing nip pressure screws from the front and the rear of the top of the fixing/feeding unit. F04-204-05 4-13 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 124: Mounting The Charging Assemblies

    Use alcohol to clean the transfer/ separation charging wire. Fixing Connector F04-205-02 4-14 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 125 Push in the fixing/feeding assembly to lock it in place. Remove the screw, and detach the primary Primary charging charging assembly front cover. assembly front cover Screw F04-205-04 4-15 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 126 Disconnect the connector, and unlock the pre-transfer charging assembly; then, Connector Lock detach the charging assembly. Clean the pre-transfer charging wire with alcohol. Pre-transfer charging assembly F04-205-07 4-16 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 127 Eccentric cam F04-205-08 Mount the primary charging assembly cover and the pre-transfer charging assembly cover with one screw each. Close the front cover. 4-17 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 128: Checking The Developing Assembly

    F04-206-02 Connector F04-206-03 4-18 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 129 Developing (M4×6; black). assembly locking unit Screw Screw Screws F04-206-04 Attach the door tape of the manual feed tray door with one screw. 4-19 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 130: Mounting The Pickup Assembly

    3/4, and slide the cassette halfway. Remove the three pickup roller releasing spacers. Pickup roller releasing spacers F04-207-02 4-20 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 131 Secure the deck pressure plate found in Front Deck (left) the shipping box to the front deck (left) with a screw (M4×8). Deck pressure plate Screw F00-207-03 4-21 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 132: Supplying Toner

    CHAPTER 4 INSTALLATION 2.8 Supplying Toner Step Work Checks/remarks Take out the toner cartridge from the Toner cartridge shipping box. F04-208-01 Remove the fixing tape. Fixing tape F04-208-02 4-22 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 133 Insert up to this point. Toner cartridge Toner cartridge F04-208-04 F04-208-03 Close the hopper cover. 4-23 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 134: Installing The Adf

    ADF original tray in the groove of the copier, and slide it to the left; then, secure it in place with screws. ADF original tray Hook F04-209-02 4-24 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 135 (F04-210-02) [4]. Place the index tab sheet attachment [5] on the mounting sheet. Place the underlay sheet [6] in the cassette. F04-210-02 4-25 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 136 FL Cassette P4 Already Fitted Set each cassette to the copier. Attach the appropriate cassette size sticker to suit the user’s needs. Label F04-211-01 4-26 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 137 5 sec; then, press the Start key once again to generate a second print. ↓ At the end, press the Reset key twice to end service mode. 4-27 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 138 For the Car Reader-D1, see 4. “Installing the them according to their respective Card Reader.” Installation Procedures found in their shipping boxes. Fill out the Service Sheet. 4-28 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 139 Start service mode, and register the front Right deck: COPIER>OPTION>SCT-P-SZ-C1 deck paper size. Left deck: COPIER>OPTION>CST>P-SZ-C2 When done, turn off and then on the main A4=6, B5=15, LTR=18 power switch. 4-29 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 140: Relocating The Machine

    They can slip out during transportation; pro- vide measures to avoid losing them. C. Remove the accessories (e.g., side paper deck, finisher) when moving the machine. 4-30 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 141 Open the front cover [1]. Shift down the fixing/feeding lever, and slide out the fixing/feeding unit [2]. Open the toner cartridge cover [3]. F04-401-01 4-31 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 142 Remove the inside cover (process unit) [1]. (4 screws [2]) F04-401-02 Remove the inside cover (upper) [1]. (5 screws [2]; disconnect the two connectors [3] from the middle in advance) F04-401-03 4-32 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 143 Step Work Checks/remarks F04-401-04 Remove the card reader case [1] from the top of the machine. (1 screw [2]) F04-401-05 Remove the face plate [1]. F04-401-06 4-33 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 144 Mount the card reader [1] to the card reader case. (4 self-tapping screws [2]) F04-401-07 Mount the grounding wire to the card reader case plate [1]. (1 screw, w/ washer) F04-401-08 4-34 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 145 Put back the fixing/feeding unit, and set the fixing/feeding lever. Close the front cover. Connect the power plug of the copier, and turn on its main power switch. 4-35 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 146: Chapter 5 Maintenance And Inspection

    CHAPTER 5 MAINTENANCE AND INSPECTION COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 147: Periodically Replaced Parts

    (Once they fail, the machine per- formance will be appreciably affected.) If possible, plan the replacement so that it will coincide with a periodical servicing visit for the machine. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 148 After replacing the charging wire, be sure to execute wire cleaning in service mode: COPIER>FUNCTION>CLEANING>WIRE-CLN. * After servicing the charging assembly, mount it while moving the cleaning holder to the fort by hand. T05-100-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 149 CHAPTER 5 MAINTENANCE AND INSPECTION [10] [11] [12] F05-100-01 [13] [16] [14] [15] [17] [17] [18] F05-100-02 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 150: Guide To Durables

    7 Transfer/separation charging FG6-7740 1,000,000 assembly 8 Pre-transfer charging FG9-3863 1,000,000 Use the LED unit (FG6-7185) assembly for a second time. 9 Pre-transfer charging FF6-1031 500,000 assembly scarper T05-201-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 151 (2 pc. for each) The actual number of pagesm made may be checked in service mode.* Left deck: LD-FD-RL Right deck: RD-FD-RL Cassette 3: C3-FD-RL Cassette 4: C4-FD-RL *COPIER>COUNTER>DRBL-1. T05-201-02 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 152 23 Separation roller FB2-7545 120,000 Actual Number of Pages (manual feed tray) Made The actual number of pages made may be checked in service mode.* M-SP-RL *COPIER>COUNTER>DRBL-1. T05-201-03 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 153 [23] [21] [19] [19] [20] [20] [18] [19] [20] [18] [19] [18] [20] [18] F05-201-01 [12] [14] [10] [13] [16] [14] [13] [11] [16] [17] [15] F05-201-02 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 154: Side Paper Deck

    PD-FD-RL 3 Side paper deck separation FB2- 250,000 The actual number of pages roller 7777-020 made may be checked in service mode.* PD-SP-RL *COPIER>COUNTER>DRBL-2. T05-202-01 F05-202-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 155: Scheduled Servicing Work

    • Charging wire (primary, per; then, clean with alcohol. pre-transfer, transfer/separation) • Grid wire (primary charging assembly) • Shielding plate (each charging assembly) • Roller electrode T05-300-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 156 If you have replaced the charging wire. c. If you have moved the charging wire cleaner by hand. d. If you have replaced the charging wire. Correct Wrong F05-300-01 F05-300-02 5-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 157 • Separation claw (upper/lower) • Feeding rollers • Inlet guide • Web (check) • Web oil pan • Thermistor • Sub thermistor • Thermal switch T05-300-02 5-11 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 158 20 Fill out the service Book, and re- Record the results of the port to the person in charge. check made on the leakage breaker in the Service Book. T05-300-03 5-12 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 159: Scheduled Service Chart

    Pre-transfer expo- sure LED Charg- Charging wire (primary) ing as- Charging wire sembly (pre-transfer, transfer/separa- tion) Grid wire (pri- mary) Charging assem- bly shielding plate Electrode T05-401-01 5-13 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 160 “Work Procedure 1.” Magnet roller For the work, see 4.2.2 “Work Procedure 2.” Fixing Inlet guide assem- Oil pan Thermistor Sub thermistor Thermal switch unit T05-401-02 5-14 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 161 Ozone filter for FM8 Dust-proofing filter for FM4 Ozone filter for FM2 Dust-proofing filter for FM10 Dust-proofing filter for FM1 Dust-proofing filter for FM14 Dust-proofing filter for FM3 F05-401-01 5-15 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 162: Work Procedure 1

    4) Using a piece of paper [3] or the like, move the waste toner collecting at the front of the magnet roller [1] and the scraper [2] toward the rear of the feedscrew. F05-402-01 5-16 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 163 6) Remove the screws [3] of the cleaner Cleaner assembly assembly one by one, and detach the toner pan (front, rear); then, remove the toner from the toner pan. Toner pan F05-402-03 5-17 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 164 CHAPTER 5 MAINTENANCE AND INSPECTION Cleaner assembly Toner pan F05-402-04 5-18 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 165: Work Procedure 2

    3) Moisten the lint-free paper [1] with al- CK-0429 cohol [2] (5 to 10 cc), and put drum cleaning power [3] (CK0429; 0.2 to 0.3 g) on the lint-free paper. F05-402-05 5-19 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 166 6) Rotate the drum for another swath, and repeat steps 3) through 5) until you have cleaned the entire surface of the drum. 7) Remove the cleaning blade assembly. 5-20 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 167 [7] against the rear of the blade retaining plate [8] while keeping the edge flush. When butting the blade, be sure to use your fingers to keep it firmly in contact. F05-402-08 5-21 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 168 If the problem is not corrected, replace the cleaning blade. Blade back plate F05-402-10 5-22 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 169: Mechanical System

    [4]. F05-501-01 3) Remove the four screws [5], and detach the scanning lamp inside cover [6]. F05-501-02 5-23 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 170 No. 1 mirror base. In addi- tion, be sure to fit the connector discussed in step 4) securely to the anti-reflection plate. Cut-off (front) F05-501-04 anti-reflection plate Cut-off (rear) F05-501-05 5-24 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 171 6) Remove the scanning lamp (w/ heater) [13] to the front. F05-501-07 7) Remove the scanning map heater [14] from the scanning lamp [13]. [14] [13] F05-501-08 5-25 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 172: Points To Note When Replacing The Scanning Lamp

    Heater Upper : 6 to 7mm (approx.) Light-emitting side F05-501-09 5.1.3 After Replacing the Scanning Lamp Chapter 6 “Troubleshooting”>2.7.3 “Af- ter Replacing the Scanning Lamp” 5-26 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 173: Scanner Drive Assembly

    6) Remove the two screws [1], and detach the rear cover support plate [2]. F05-502-01 7) Remove the three screws [3], and dis- connect the connector [4]. F05-502-02 5-27 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 174: Scanner Drive Cable

    8) Move the No. 1 mirror base to where the cable fixing [1] of the No. 1 mirror base is in view through the hole in the machine side plate. Rear F05-502-05 5-28 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 175 Steel ball Wind seven times. PUt the steel ball into the hole in the pully. (Try not to leave gaps between cable lengths.) Fix temporarily. F02-502-06 5-29 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 176 No. 1 mirror base and the No. 2 mirror base; then, insert the pin [3] attached to the mirror position tool. Front F02-502-07 Rear F02-502-08 5-30 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 177 [4] through the hole in the side plate. Front F02-502-09 Rear F02-502-10 12) Detach the mirror positioning tool. 13) Mount the parts by reversing steps 1) through 7). 5-31 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 178 1) Remove the two screws [1], and detach the right glass retaining cover [2]. F02-502-11 2) Remove the copyboard glass. 3) Move the No. 1 mirror base [3] to the middle. F02-502-12 5-32 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 179 [5]. F02-502-13 5) Push in the claw [6] inside, and release the flexible cable fixing plate [7] of the connector. (Before release) (Release) F02-502-14 5-33 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 180 • When pushing in the fixing plate, do not touch the reflect- ing plate. F02-502-15 5-34 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 181: Pcbs

    [2], remove the light control PCB holder. F05-503-01 4) Disconnect the connector [3], and re- move the screw [4]; then, detach the light control PCB [5]. F05-503-02 5-35 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 182: Removing The Inverter Pcb

    [4] of the mounting plate of the inverter unit [3] to remove, detach the inverter control as- sembly. F05-503-03 [4] (Left) [4] (Right) F05-503-04 5-36 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 183 CHAPTER 5 MAINTENANCE AND INSPECTION 3) Remove the six screws [5], and detach the inverter PCB [6]. F05-503-05 5-37 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 184: Others

    [2]; then, detach the original sensor unit [3]. F05-504-01 4) Disconnect the connector [4] (one each), and detach the original sensor (1/ 2) [5]. F05-504-02 5-38 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 185 [2]; then, detach the origi- nal sensor unit (rear) [3]. F05-504-03 4) Disconnect the connector [4] (one each), and remove the original sensor (3/4) [5]. F05-504-04 5-39 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 186: Removing The Scanner Home Position Sensor

    [4]. F05-504-05 4) Disconnect the connector [5], and re- move the screw [6]; then, detach the scanner home position sensor [7]. F05-504-06 5-40 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 187: Removing The Copyboard Glass Sensor

    [1]; then, remove the screw [2], and de- tach the sensor mounting plate [3]. F05-504-07 4) Disconnect the connector [4], and de- tach the copyboard glass sensor [5]. F05-504-08 5-41 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 188: Removing The Image Leading Edge Sensor

    [4]. F05-504-09 4) Disconnect the connector [5], and re- move the screw [6]; then, detach the im- age leading edge sensor [7]. F05-504-10 5-42 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 189: Removing The Standard White Plate

    4) Remove the two screws [2], and remove the stander white cover [3]. F05-504-12 5) Remove the four screws [4], and detach the standard white plate [5]. F05-504-13 5-43 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 190: After Replacing The Standard White Plate

    CHAPTER 5 MAINTENANCE AND INSPECTION 5.4.7 After Replacing the Standard White Plate Chapter 6 “Troubleshooting”>2.7.2 “Af- ter Replacing the Standard White Plate” 5-44 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 191: Removing The Ccd Pcb

    [2]; then, detach the origi- nal sensor unit (rear) [3]. F05-505-01 4) Remove the two screws [4], and remove the flexible cable [5] together with the cover sheet [6]. F05-505-02 5-45 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 192 5) Remove the six screws [7], and detach the reader controller cover [8]. F05-505-03 6) Release the claws [10] at the front and the rear, and detach the CCD cover [9]. [10] F05-505-04 5-46 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 193: After Replacing The Ccd Unit

    PCB, and detach the [16] [13] [12] CCD unit [16]. [13] [15] [14] F05-505-05 5.5.2 After Replacing the CCD Unit Chapter 6 “Troubleshooting”>2.7.4 “Af- ter Replacing the CCD Unit” 5-47 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 194: Laser Unit

    7) Disconnect the four connectors [3], and disconnect the video cable [4]; then, re- move the eight screws [5], and detach the laser scanner unit [6]. [5] [5] F05-506-02 5-48 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 195: After Replacing The Laser Unit

    CHAPTER 5 MAINTENANCE AND INSPECTION 5.6.2 After Replacing the Laser Unit Chapter 6 “Troubleshooting”>2.7.11 “Af- ter Replacing the Laser Unit” 5-49 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 196: Bd Unit

    Be sure to put a marking line before loosening the screw [4]. F05-507-02 5) Disconnect the connector [6], and de- tach the BD unit [5]. F05-507-03 5-50 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 197: Components Around The Process Unit

    LED cover [2]. F05-508-01 4) Remove the connector [3], and detach the pre-transfer exposure LED [4]. F05-508-02 5-51 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 198: Removing The Developing Cylinder Decelerating Clutch

    [4]. F05-508-04 5) Remove the six E-rings [5], two bear- ings [6], gear [7], and pin [8]; then, re- move the clutch [4]. F05-508-05 5-52 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 199: Removing The Developing Cylinder Clutch

    4) Remove the developing cylinder clutch [1]. F05-508-06 5) Remove the eight E-rings [2], two bear- ings [3], two gears [4], and pin [5]; then, detach the clutch [1]. F05-508-07 5-53 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 200: Charging Wires

    [3] from the open- ing in the shield plate [5]. F05-509-01 2) Pick up the wire cleaner with radio pli- ers, and free the hook with your fingers. F05-509-02 5-54 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 201: Stringing The Charging Wires

    To form a loop, wind the charg- ing wire around a hex key once, Charging wire and twist the hex key three to Memo (Front) (Rear) four times. F05-509-04 5-55 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 202 9) Fit the cushion to the front of the charg- ing wire. (Skip this step for the primary charging assembly.) 10) Fit the sidling plate (left, right). For other charging assemblies, fit the two covers. 5-56 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 203 11) Mount the wire cleaner. At this time, pay attention to the orientation of the wire cleaner. 12) Wipe the charging wire with lint-free paper moistened with alcohol. 5-57 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 204: Strutting The Grid Wire Of The Primary Charging Assembly

    1.5 ±0.25 kg•cm; then, tighten the screws [3], [4], [5], and [6] in the sequence indicated to a tightening torque of 8 kg•cm or more. F05-509-09 5-58 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 205: Adjusting The Height Of The Charging Wire

    The height (position) of the primary or transfer charging wire may be ad- justed by turning the screw found on the assembly in question; a full turn of REF. the screw changes the position by about 0.7 mm. 5-59 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 206: Process Unit

    [3], remove the screw [4] to detach the fixing screw [5]. 7) Remove the three screws [6], and slide out the process unit [7]. F05-510-02 5-60 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 207 When placing the removed pro- cess unit, turn the kit support plate [9] counterclockwise so that it will not come into contact with the floor. F05-510-04 5-61 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 208: Mounting The Process Unit

    When mounting the process unit back, be sure to wipe off the waste toner from the duplex unit up- per cover. F05-510-05 F05-510-06 F05-510-07 5-62 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 209 CHAPTER 5 MAINTENANCE AND INSPECTION F05-510-08 5-63 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 210: Manual Feed Tray Assembly

    [2]. F05-511-01 2) Remove the four screws [3], and detach the right upper cover [5] while keeping the toner cartridge cover [4] open. F05-511-02 5-64 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 211: Removing The Manual Feed Tray Pickup Sensor

    1) Remove the mounting screw [1], and detach the solenoid cover [2]. F05-511-04 2) Remove the mounting screw [3], and detach the solenoid [4] together with its support plate. F05-511-05 5-65 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 212 [9]. F05-511-07 5) Remove the two mounting screws [10], [11] [10] [10] and detach the lower cover [11]. F05-511-08 5-66 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 213: Attaching The Side Guide Timing Belt In The Manual Feed Tray Assembly

    A (open state). Move the slide volume [2] in the direc- tion of B, and attach the timing belt [3] to the pulley [4]. F05-511-11 5-67 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 214: Vertical Path Roller Assembly

    [8]. F05-512-02 4) Remove the E-ring [9] and then the [11] bearing [10]; thereafter, detach the ver- tical path roller [11]. [10] F05-512-03 5-68 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 215: Removing The Vertical Path Roller 2

    4) Remove the E-ring [6] at the front of the roller shaft, and move the bearing [7] toward the inside to detach the verti- cal roller 2 [8]. F05-512-06 5-69 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 216: Registration Feeding Assembly

    F05-513-02 Further, when mounting the reg- istration clutch, be sure to hook the clutch stop [A] on the pro- trusion [B] of the clutch cover. F05-513-03 5-70 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 217: Removing The Registration Brake Clutch

    1) Remove the transfer separation charging assembly front cover. 2) Disconnect the connector [1], and loosen the two screws [2] (w/ hex hole); then, detach the registration brake clutch [3]. F05-513-04 5-71 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 218: Duplexing Unit

    [2] then, detach the reversal motor [3] together with the motor support plate [4]. F05-514-01 3) Remove the four screws [5], and detach the reversal motor [6]. F05-514-02 5-72 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 219: Removing The Lower Feed Motor

    1) Remove the duplexing unit front cover. 2) Disconnect the connector [1], and re- move the two screws [2]; then, detach the lower feed motor [3]. [2] [1] F05-514-03 5-73 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 220: Fixing Assembly

    4) Remove the two fastons [8] at the front, [10] and remove the screw [9]; then, detach the heater positioning plate (front) [10]. F05-515-03 5) Detach the main/sub heater. 5-74 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 221: Mounting The Main/Sub Heater

    1) Remove the fixing assembly from the copier. 2) After removing the fixing web, remove the two screws [1], oil pan [2], and fix- ing harness cover [3]. F05-515-05 5-75 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 222 Points to Note When Mounting the Thermal Switch When mounting the thermal switch, Fixing roller check to make sure that its is in contact with the fixing roller as shown. Thermal switch F05-515-08 5-76 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 223: Removing The Main Thermistor

    F05-515-09 5) Remove the two thermistor retaining springs [4], and detach the main ther- mistor [5]. F05-515-10 5-77 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 224 The tie-wrap is butted against the claw [7], serving as a stopper. Further, check to make sure that the main thermistor and the fixing roller are not away from each other. F05-515-11 5-78 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 225: Removing The Sub Thermistor

    4) Disconnect the connector [1], and re- move the screw [2]; then, detach the sub thermistor assembly [3]. F05-515-12 5) Remove the screw [4], and detach the sub thermistor [5]. F05-515-13 5-79 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 226: Fixing Roller Assembly

    6) Open the fixing upper unit [5]. When open, the fixing upper unit remains unstable; make use of the handle of a screwdriver to support it as shown. F05-515-16 5-80 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 227: Delivery Assembly

    4) Remove the E-ring [6] found at the rear; then, slide the bearing [7] toward the rear, and detach the external delivery roller assembly [8]. F05-516-03 5-81 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 228: Removing The Internal Delivery Roller

    [5]. F05-516-05 3) Remove the E-ring [6] and the bushing [7] at the rear of the shaft, and detach the internal delivery roller [1]. F05-516-06 5-82 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 229: Removing The Delivery Speed Switching Clutch

    When removing the delivery speed switching clutch, take care not to lose the bearings and washer (rear only) found on both sides of the clutch shaft. F05-516-08 5-83 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 230: Paper Sensor

    [2]; then, detach the external delivery sensor assembly [3]. F05-517-02 3) Disconnect the connector [4], and de- tach the external delivery sensor [5]. F05-517-03 5-84 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 231: Removing The Internal Delivery Sensor

    [1]; then, detach the internal delivery sensor assembly [2]. F05-517-04 3) Disconnect the connector [3], and re- move the internal delivery sensor [4]. F05-517-05 5-85 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 232: Removing The Reversal Sensor

    2) Open the upper delivery assembly, and remove the screw [1]; then, remove the reversal sensor assembly [2]. F05-517-06 3) Disconnect the connector [3], and de- tach the reversal sensor [4]. F05-517-07 5-86 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 233: Removing The Fixing/Feeding Unit Output Sensor

    [2]. F05-517-08 3) Disconnect the connector [3], and de- tach the fixing/feeding outlet sensor [4]. F05-517-09 5-87 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 234: External Covers

    [17] Inside cover (process unit) [21] [17] [18] [19] [18] Inside cover (primary) [19] Inside cover (pre-transfer) [20] Inside cover (right lower) [21] Inside upper cover [20] F05-518-03 5-88 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 235: Removing The

    2) Open the toner cartridge cover [3], and pull up to remove the hinge pin [4] from the front cover. 3) Pull off the front cover at an angle. F05-518-04 5-89 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 236: Removing The Inside Upper Cover

    (process unit) [4]. F05-518-05 4) Remove the five mounting screws [5], and disconnect the two connectors [6]; then, detach the inside upper cover [7]. F05-518-06 5-90 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 237: Removing The Fixing/Feeding Unit Cover

    [6]. F05-518-07 5.18.4 Removing the Rear Cover 1) Remove the ten mounting screws [1], and detach the rear cover [2]. F05-518-08 5-91 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 238 Removing the Right Middle Cover 1) Open the rimiddlelower cover [2]. 2) While lifting the right upper cover [1] slightly, pull up the right middle cover [2]. F05-518-09 5-92 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 239: Control Panel

    [4]. F05-519-02 5) Remote four screws [5], and detach the right upper cover [7] while keeping the toner cartridge cover [6] open. F05-519-03 5-93 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 240 7) Remove the four screws [10], and turn over the control panel [11] toward the front; then, disconnect the connector [12] to detach the control panel. [11] [10] [10] F05-519-05 [12] F05-519-06 5-94 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 241: Removing The Control Panel Controller (Cpu) Pcb And The Control Panel Inverter Pcb

    [8]. 4) Remove the four screws [9], and detach the control panel inverter PCB [10]. [10] [9] [7] F05-519-09 5-95 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 242: Removing The Control Panel Pcb And The Lcd Panel

    PCB. 4) Free the harness from the wire saddle; then, remove the nine screws [3], and detach the control panel plate [4]. F05-519-11 5-96 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 243 PCB [5]. F05-519-12 6) Remove the four screws [6] from the control panel plate removed in step 4), and detach the LCD panel [7]. F05-519-13 5-97 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 244: Fans

    3) Remove the two screws [4], and detach the flexible cable [5] together with the cover sheet [6]. F-05-520-02 4) Remove the six screws [7], and detach the reader controller cover [8]. F05-520-03 5-98 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 245 When mounting the laser driver cooing fan, be sure that its ori- entation is correct with refer- ence to the direction of current indicated on it. F05-520-06 5-99 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 246: Removing The Curl-Reducing Fan

    F05-520-08 6) Disconnect the connector [7], and re- move the two screws [8] then, detach the curl-reducing fan [9]. F05-520-09 5-100 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 247: Removing The Power Supply Cooling Fan 1

    F05-520-10 4) Remove the two screws [3], and discon- nect the connector [4]; then, remove the power supply cooling fan 1 [5]. F05-520-11 5-101 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 248: Removing The Power Supply Cooing Fan 2

    2) Slide out the fixing/feeding unit. 3) Remove the four screws [1], and detach the fixing/feeding lower cover (1) [2] and the fixing/feeding lower cover (2) [3]. F05-520-13 5-102 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 249 [5]; then, detach the separation fan unit [6]. F05-520-14 5) Remove the three screws [7], and detach the separation fan [8]. F05-520-15 5-103 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 250: Developing Assembly Fan

    [5]. F05-520-17 When mounting the separation fan, be sure its orientation is correct in reference to the direc- tion of current indicated on it. 5-104 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 251: System Fan

    [5]. When mounting the system fan, be sure its orientation is correct in reference to the direction of current indicated on it. F05-520-19 5-105 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 252: Delivery Anti-Adhesion Fan

    5.20.9 Removing the Drum Drive Assembly 1) Remove the rear cover. 2) Remove the high-voltage transfer (DC). 3) Remove the two screws [1], and detach the flywheel [2]. F05-520-22 5-106 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 253 5) Remove the waste toner box; then, re- move the five screws [6], and discon- nect the four connectors [7]. Thereafter, detach the waste toner box base [8]. F05-520-24 5-107 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 254 [12] to detach the waste toner pipe [9]. [11] [12] F05-520-25 7) Remove the screw [13], and detach the [13] [14] drum cleaner pipe cover [14]. F05-520-26 5-108 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 255: Removing The Cassette Pickup Drive Assembly

    2) Remove the waste toner box base. 3) Remove the cassette pickup assembly (upper/lower holder). 4) Remove the five screws [1], and detach the cassette pickup drive assembly [2]. F05-520-28 5-109 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 256: Switches

    3) Remove the three screws [1], and slide out the cover switch assembly [2] to the front. F05-521-01 4) Disconnect the five connectors [3], and detach the cover switch assembly [2]. F05-521-02 5-110 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 257: Removing The Manual Tray Switch Assembly

    PCB [6]. F05-521-04 4) Remove the screw [7], and disconnect the two connectors [8]; then, detach the manual feed tray switch assembly [9]. F05-521-05 5-111 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 258 2) Remove the three screws [1], and dis- connect the seven connectors [2]; then, detach the power supply cord base [3], and free the drum heater switch [4] to detach. 05-521-06 5-112 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 259 Replacing the DC Controller PCB” 5.22.3 Removing the Differential PCB 1) Remove the rear cover. 2) Remove the reader controller communi- cation cable [1]. F05-522-02 5-113 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 260 [5] and the connector [6]. F05-522-04 5) Remove the four screws [7], and detach the differential PCB [8] together with its mounting base. F05-522-05 5-114 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 261 [4]; then, de- tach the pixel/line conversion PCB [5]. F05-522-07 5) Remove the six screws [6], and detach the pixel/line conversion PCB [5] from its mounting base. F05-522-08 5-115 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 262: Pixel/Line Conversion

    PCB. 4) Disconnect all connectors from the main controller PCB [1]. F05-522-09 5) Remove the four screws [2], and open the main controller box [3]. F05-522-10 5-116 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 263: After Replacing The Main Controller Pcb

    [7], and detach the main control- ler PCB [1]. F05-522-12 5.22.6 After Replacing the Main Controller PCB Chapter 6 “Troubleshooting”>2.7.6 “Af- ter Replacing the Main Controller PCB” 5-117 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 264: Reader Controller Pcb

    3) Remove the reader controller cover. 4) Disconnect the connector, and remove the three screws [2]; then, detach the original orientation detection PCB [3] in the direction of the arrow. F05-522-14 5-118 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 265: Ac Driver Pcb

    1) Remove the rear upper cover. 2) Disconnect the connector [1], and re- move the four screws [2]; then, detach the Voltage converter PCB [3]. F05-522-16 5-119 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 266: High-Voltage Transformer (Ac) Pcb

    F05-522-17 5.22.13 All-Day Power Supply PCB 1) Remove the left cover. 2) Remote six screws [1], and detach the delivery anti-adhesion fan mounting base [2]. F05-522-18 5-120 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 267 PCB [5]. F05-522-19 5.22.14 Bi-Centronics PCB 1) Remove the rear cover. 2) Remove the tow screws [1] found on the left rear cover. F05-522-20 5-121 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 268 CHAPTER 5 MAINTENANCE AND INSPECTION 3) Disconnect the connector [2], and de- tach the bi-Centronics PCB [3] form the PCB holder (2 pc.). F05-522-21 5-122 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 269: Power Supply Unit

    3) Remove the two screws [3], and detach the cover plate [4]; then, remove the two screws [5], and detach the power supply unit [6]. F05-523-02 5-123 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 270: High-Voltage Transformer (Ac)

    [3] together with its mounting base. F05-524-01 3) Disconnect the three connectors [4], and remove the screw [5]; then, detach the high-voltage transformer assembly (AC) [6]. F05-524-02 5-124 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 271: High-Voltage Transformer (Dc)

    2) Disconnect the connector from the PCB; then, remove the screw [1], and then free the relay PCB [1] form the four PCB holders [2]. F05-526-01 5-125 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 272: Removing The Voltage Converter Unit

    2) Remove the two screws [1], and free the reader controller communication cable [2] from the wire saddle [3]; then, de- tach the voltage converter unit [4]. F05-527-01 5-126 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 273: Removing The Hard Disk

    2) Remove the four screws [1], and detach the hard disk cover [2]. F05-528-01 3) Remove the three screws [3], and de- tach the lower cover plate [4]. F05-528-02 5-127 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 274: After Replacing The Hard

    5) Remove the four screws [10], and de- [10] tach the hard disk [9]. [10] F05-528-04 5.28.1 After Replacing the Hard Disk Chapter 6 “Troubleshooting”>2.7.7 “Af- ter Replacing the Hard Disk” 5-128 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 275 CHAPTER 6 TROUBLESHOOTING COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 276 To find out checks to make and actions to take for a specific problem, make the check indicated under “Checks” and answer the question in terms of “YES” or “NO”; if yes, take the action indicated, otherwise, go to the next step. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 277 In the case of the example, you are expected to connect the positive probe to J109-1 and the negative probe to J109-2. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 278: Standards And Adjustments

    COPIER>ADJUST>LASER>PVE-OFST. If not, enter the setting recorded on the ser- vice label. The setting is used so that the image on the photosensitive drum will be centered. Changing the setting can deform the edges of images. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 279 Standard: 2.5 ±1.5 mm Mode: COPIER>ADJUST>BLANK>BLANK-B • A higher setting increases the margin. • A lower setting decreases the margin. 2.5mm 1.5mm F06-201-03 6-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 280 Front Deck (left/right) 1) Slide out the deck, and loosen the four screws [2] and the two fixing screws [3] of the cassette front cover [1]. F06-201-05 6-11 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 281 (front) [4] to the front or the rear, and make adjustments. F06-201-06 Cassette (3/4) 1) Slide out the cassette, and remove the two screws [2] of the cassette front cover [1]. F06-201-07 6-12 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 282 If you have adjusted cassette 3 or 4, be sure to execute the following service mode: • If you have adjusted cassette 3, COPIER>ADJUST>CST-ADJ>C3-STMTR COPIER>ADJUST>CST-ADJ>C3-A4R • If you have adjusted cassette 4, COPIER>ADJUST>CST-ADJ>C4-STMTR COPIER>ADJUST>CST-ADJ>C4-A4R 6-13 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 283 Place the NA Test Chart on the copyboard, and make a copy of it to check the front non- image width. Standard: 2.5 ±1.5 mm Mode: COPIER>ADJUST>ADJ-XY>ADJ-Y • A higher setting increases the margin. • A lower setting decreases the margin. 2.5 1.5mm F06-201-10 6-14 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 284 Place the NA3 Test Chart on the copyboard glass, and make a double-sided copy of it to check the front margin on the second side. Standards: 2.5 ±1.5 mm. 2.5mm 1.5mm F06-201-12 6-15 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 285 [1] of the deck open solenoid using the two screws [2]. (For this work, use the scale [3] on the latch plate as a reference.) F06-201-14 6-16 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 286 Standards: 2.5 ±1.5 mm Adjustment:mounting position of the ADF original tray. 2.5 1.5mm F06-201-16 6-17 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 287: Adjusting The Position Of The Scanner Mirror Base

    4) Execute the following service mode to generate a service label; then, store the service label in the service book case. • COPIER>FUNCTION>MISC-P>LBL-PRINT 5) Turn off and then on the main power switch. 6-18 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 288: Image Formation System

    2.3.2 Stringing the Charging Wire of Charging Assemblies See 5.9.3 “Stringing the Charging Wire.” 2.3.3 Mounting the Drum Cleaning Blade See Chapter 5 4.2.2 “Work 2” 6-19 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 289: Pickup/Feeding System

    [5] on the side of the roller and the round mark- ing [6] on the collar (silver-colored) are toward the rear of the machine. (direction of rotation) Collar (silver-colored) (rear of machine) F06-204-02 6-20 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 290: Orientation Of The Deck/Cassette Separation Roller

    [2] is toward the front of the machine. When mounting the feeding roller [3] to the feeding roller shaft [4], be sure that the round marking [5] is toward the front of the machine. (front) F06-204-04 6-21 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 291: Orientation Of The Pickup Roller Of The Manual Feed Tray/Side Paper Deck

    [5] on the side of the roller and the round marking [7] on the collar (silver-colored) are toward the rear of the machine. (direction of rotation) (rear of machine) Collar (gold-colored) [4] Pickup roller [5] Marking (roller) [6] Marking (collar) F06-204-06 6-22 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 292: Orientation For The Feeding Roller Of The Manual Feed Tray

    [2] is toward the front of the machine. When mounting the feed- ing roller [3] to the feeding roller shaft [4], be sure that the round marking [5] is toward the rear of the machine. (front) F06-204-08 6-23 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 293: Adjusting The Pressure Of The Separation Roller Of The Deck/Cassette

    • If pickup failure occurs, move the hook of the spring in the direction of A. [1] Feeding roller [2] Separation roller [3] Locking lever [4] Pressure spring F06-204-09 6-24 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 294: Adjusting The Pressure Of The Pickup/Feeding Roller Of The Manual Feed Tray

    • If double feeding occurs, move the hook of the spring in the direction of A. • If pickup failure occurs, move the hook of the spring in the direction of B. F06-204-10 6-25 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 295: Position Of The Solenoids

    No adjustment needed. SL 4 Solenoid SL11 (SL 4) SL 6 Solenoid SL10 (SL 6) 0.4±0.2mm 10.5±0.5mm SL 9 / 10 SL 8 SL 7 F06-204-11 6-26 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 296: Position Of The Fixing Web Solenoid (Sl2)

    If the Fixing Web Is New Use the screw [2] to adjust the position of the solenoid [1] so that the travel of the drive lever is 8.2 mm. 8.2mm F06-204-12 6-27 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 297 [1] is ON; after replacement, adjust the position of the drive lever using the screw [2] so that it is the same as it was before removal when the solenoid goes on. F06-204-13 6-28 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 298: Position Of The Delivery Flapper Solenoid (Sl3)

    Use the screw [2] to adjust the position of the solenoid so that, when the solenoid [1] goes on (i.e.., when steel core is drawn), the drive lever is fully pushed. Push fully. F06-204-14 6-29 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 299: Position Of The Fixing Feeding Unit Locking Solenoid (Sl4)

    Adjust the position of the solenoid using the screw [3] so that the locking lever [2] will stick out 10.5 ±0.5 mm from the frame when the solenoid [1] goes ON (i.e., the steel core is drawn). F06-204-15 6-30 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 300: Adjusting The Position For The Multifeeder Pickup Latch Solenoid (Sl6)

    Adjust the solenoid in the direction of A to adjust so that the gap between the shutter [1] and the shutter plate [2] is 0.4 ±0.2 mm when the solenoid is pulled. F06-204-16 F06-204-17 6-31 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 301: Position Of The Deck (Right) Pickup Solenoid (Sl7)

    34.5 ±0.5 mm. View from A F06-204-18 6-32 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 302: Position Of The Deck (Left) Pickup Solenoid (Sl8)

    50 ±0.5 mm. View from A F06-204-19 6-33 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 303: Position For The Cassette

    36 ±0.5 mm. View from A F06-204-20 6-34 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 304: Position Of The Side Paper Deck Pickup Roller Releasing Solenoid

    Butt the rack plate [1] of the manual feed tray against A (open state). Move the slide volume [2] in the direction of B, and attach the timing belt [3] to the pul- ley [4]. F06-204-22 6-35 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 305: Attaching The Drive Belts

    Be sure to attach the drive belts on the pulleys and the rollers as shown. Developing/waste toner drive belt Main motor Pickup motor Main drive belt Pickup drive belt F06-204-23 6-36 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 306: Fixing System

    Do not loosen the fixing screw on the inlet guide. If you must, be sure to put it back to its original position with reference to the scale on the fixing assembly base. 6-37 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 307: Adjusting The Lower Roller Pressure (Nip Width)

    2) Make the following selections in service mode to generate output: COPIER>FUNCTION>FIXING>NIP-CHK. The A3 cop paper will be picked up and a copy (F06-205-02) will be delivered. 6-38 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 308: Laser Exposure System

    5) After assembling the machine, connect the power plug to the power outlet, and turn on the main power switch. 6) Enter the settings recorded in step 4) in service mode: COPIER>ADJUST>LASER>LA-DELAY> 6-39 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 309: Checking The Laser Power

    3) Remove the copyboard glass. 4) Open the laser power check slot cover [1]. F06-206-01 5) Shift the switch on the laser power checker (FY9-4008) to ‘2’. 6-40 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 310 CHAPTER 6 TROUBLESHOOTING 6) Fit the laser power checker with its light-receiving face [1] as indicated. F06-206-02 6-41 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 311 12) Select ‘POWER-B’, and press the OK key. 13) See the the reading of the digital multimeter is 9 to 11 mV, indicating that the power of laser B is correct. 6-42 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 312: Items Related To Electrical Components

    6) See that all items of COPIER>ADJUST>CCD and all data of COPIER>ADJUST>LAMP>L-DATA are updated. Record the results on the service la- bel. 7) Turn off and then on the main power switch. 6-43 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 313: Points To Note When Replacing The Scanning Lamp

    6) See that all items of COPIER>ADJUST>CCD and all data of COPIER>ADJUST>LAMP>L-DATA are updated. Record the results on the service la- bel. 7) Turn off and then on the main power switch. 6-44 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 314 C: COPIER>ADJUST>ADJ-Y-DF F06-207-02 9) Execute the following in service mode to generate a service label; FUNCTION>MISC- P>LBL-PRINT. Store the service label in the service book case. 6-45 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 315: When Replacing The Reader Controller Pcb

    10) Turn off and then on the main power switch, and execute COPIER>FUNCTION>MISC-P>LBL-PRINT in service mode to generate a service la- bel. Then, store it in the service book case. 6-46 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 316: Replacing The Main Controller Pcb

    4) Turn on the PC; while holding down ‘2’ and ‘8’ keys on the keypad in the control panel at the same time, turn on the main power switch. 5) Using the Service Support Tool format the HDD unit and install the system software. 6-47 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 317: Replacing The Dc Controller Pcb

    6) Enter the settings (4 types) recorded on the label attached to the new DC controller PCB in service e mode. COPIER>ADJUST>DEVELOP>D-HV-DE COPIER>ADJUST>HV-TR>D-HV-TR COPIER>ADJUST>HV-TR>D-PRE-TR COPIER>ADJUST>HV-SP>D-HV-SP F06-207-04 7) Turn off and then on the main power switch. 6-48 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 318: After Replacing The High-Voltage Dc Pcb

    HVT-SP > > > COPIA ADJUST HV-TR HVT-TR > > > COPIA ADJUST HV-TR H-PRE-TR F06-207-05 4) Turn off and then on the main power switch. 6-49 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 319: When Replacing The Laser Unit

    The potential sensor and the potential control PCB are adjusted as a pair, requiring simultaneous replacement. 4) Remove the developing assembly, and slide out the process unit. 6-50 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 320 CHAPTER 6 TROUBLESHOOTING 5) Disconnect the connector [1] of the potential sensor. F06-207-06 6) Remove the two screws [1], and detach the potential sensor support plate [2]. F06-207-07 6-51 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 321 When mounting the potential sensor checking electrode to the potential sen- sor, take care so that the magnet of the checking electrode will not come into contact with the potential sensor cover. 6-52 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 322 18) Put the potential sensor support plate back into its initial position. 19) Connect the power plug to the power outlet, and turn on the main power switch. 6-53 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 323: Checking The Surface Potential Control System

    DC controller PCB. c. Zero-Level Check A “zero-level check” may be used as a means to find out whether the surface potential control circuit is good or not. 6-54 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 324 1) Turn off the power switch. 2) Short J522-1 and -2 on the DC controller PCB with a jumper wire, and disconnect connector J3 of the potential control PCB. 6-55 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 325 6) Detach the jumper wire from the DC controller PCB. 7) Connect the connector to J3 of the potential control circuit. 8) Turn on the power switch. 6-56 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 326 2) Remove the developing assembly, and slide out the process unit. 3) Disconnect the connector [1] of the potential sensor. F06-207-12 4) Remove the two screws [1], and detach the potential sensor support plate [2]. F06-207-13 6-57 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 327 CHAPTER 6 TROUBLESHOOTING 5) Put the developing assembly and the process unit back to their original positions. 6) Connect the connector of the potential sensor. F06-207-14 6-58 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 328 When fitting the checking electrode to the potential sensor, take care so that the magnet of the checking electrode will not come into contact with the potential sensor cover. F06-207-15 6-59 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 329 It is safe to assume that the operation and the signal path from the poten- tial sensor unit to the microprocessor on the DC controller PCB are nor- mal. 6-60 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 330 12) Turn off the power switch. 13) Detach the potential sensor checking electrode. 14) Mount the potential sensor support plate. 15) Turn on the power switch. 6-61 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 331: Conversion Table For The Potential Control System

    4.45 1300 -121 +150 4.50 1290 -125 +155 4.55 1280 -129 +160 4.60 1270 -134 +165 4.65 1260 -138 +170 4.70 1250 -142 +175 4.75 T06-208-01 6-62 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 332 6.35 +128 -276 +340 6.40 +130 -280 +345 6.45 +132 -284 +350 6.50 +134 -288 +355 6.55 +135 -292 +360 6.60 +137 -296 +365 6.65 T06-208-02 6-63 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 333 8.25 +199 -430 +530 8.30 +201 -434 +535 8.35 +203 -438 +540 8.40 +205 -442 +545 8.45 +207 -446 +550 8.50 +209 -450 +555 8.55 T06-208-03 6-64 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 334 10.15 +270 -585 +720 10.20 +272 -589 +725 10.25 +274 -593 +730 10.30 +276 -597 +735 10.35 +278 -601 +740 10.40 +280 -605 +745 10.45 T06-208-04 6-65 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 335 10.70 +291 -629 +775 10.75 +293 -633 +780 10.80 +295 -637 +785 10.85 10.90 +297 -641 +790 +299 -645 +795 10.95 +300 -650 +800 11.00 T06-208-05 6-66 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 336: Checking The Environment Sensor

    The environment sensor jig (FY9-3014) is adjusted at the factory to a high level of accuracy. Be sure to put it in a sealed case with a drying agent for storage. 6-67 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 337: Checking The Photointerrupters

    Using Service Mode 1) Start service mode (COPIER>I/O), and check the appropriate address. Turning on/off a sensor can start the machine’s motor or the like. Take full care. 6-68 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 338 When paper is pulled, PS14 J519-B8 In standby, put paper over When paper is put, Pre-confluence P001-3 the detecting lever of PS14. When paper is not sensor put, T06-210-01 6-69 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 339 When the light-block- Deck (left) pickup P001-1 tecting lever by hand. ing plate is not at PS25, sensor When the light-block- ing plate is at PS25, T06-210-02 6-70 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 340 When the light-block- Cassette 3 lifter P004-2 tecting lever by hand ing plate is at PS38, sensor When the light-block- ing plate is not at PS38, T06-210-03 6-71 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 341 When the light-block- Right lower cover P005-9 tecting lever by hand. ing plate is at PS48. open/closed sensor When the light-block- ing plate is not at PS48. T06-210-04 6-72 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 342 When the light-block- Toner cartridge P005-12 tecting lever by hand. ing plate is at PS59. cover open/closed When the light-block- sensor ing plate is not at PS59. T06-210-05 6-73 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 343: Troubleshooting Image Faults

    • Diazo copies or transparent originals may generate copies that can be mis- taken as being “foggy.” REF. • Originals prepared in pencil can generate “light” copies. 6-74 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 344: Checking The Copyboard Cover, Copyboard Glass, And Standard White Plate For Dirt And Scratches

    Check the connection between the developing assembly and the machine. 3.1.6 Checking the Paper a. Check to make sure that the paper is of a type recommended by Canon. b. Check to make sure that the paper is not miost. Try copy paper fresh out of package to make copies.
  • Page 345 CHAPTER 6 TROUBLESHOOTING 6-76 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 346 CHAPTER 6 TROUBLESHOOTING 6-77 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 347: Sample Faulty Images

    Note: These samples have been prepared artificially. They may appear somewhat different from actual faulty images because they have been generated using A3 copies made of the NA3 Test Sheet and reducing them to about 19%. 6-78 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 348: Troubleshooting Faulty Images

    YES: Check to make sure that the coating of toner on the developing cyl- inder is even. Image processing 5) Is the setting of the following in service mode too low: COPIER>ADJUST>DENS>DEN-ADJ? YES: Set it to ‘5’. 6-79 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 349: The Copy Is Too Light (Solid Black Area)

    7) Is the developing assembly fitted securely? Are the developing members of the developing assembly in firm contact with the photo- sensitive drum? Check how the developing assembly locking plate is mounted. 6-80 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 350 360 to 420 Check the power supply control system; if normal, replace the pho- tosensitive drum. YES: Check the control system of the developing bias. 6-81 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 351: The Copy Has Uneven Density (Darker Front)

    YES: 1. Clean all the charging wires once again, and check the position of each charging wire. 2. Try different copy paper. 3. Check the nip width of the fixing roller. 6-82 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 352: The Copy Is Foggy (Entire Face)

    COPIER>ADJUST>V-CONT>DE-OFST or OHP-OFST? YES: Try decreasing it. Developing cylinder speed control 9) Is the setting of the following service mode ‘0’: COPIER>OPTION>BODY>DEV-LOW? Set it to ‘0’. 6-83 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 353: The Copy Is Foggy In Vertical Direction

    2. Check to make sure that the front fixing plate of the developing magnet is secured in place. YES: 1. Remove the drum cleaning blade, and check its edge. 2. Check the drum cleaner unit. 6-84 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 354: The Copy Has A Black Line (Vertical, Fine)

    YES: Replace the photosensitive drum. If a scratch is found, be sure to find out its cause. Check the development system. 6-85 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 355: The Copy Has White Spots (Vertical)

    Is the image normal? YES: The cause is after the fixing system. Perform the following: 1. Roller offset in the fixing assembly 6-86 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 356 2. Vary the setting of the following in service mode: COPIER>OPTION>BODY>FUZZY. Charging wire cleaner 8) Is the charging cleaning pad stopped in the middle? YES: Execute wire cleaning user mode (‘adjust/clean’). 6-87 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 357: The Copy Has White Spots (Horizontal)

    Charging wire (dirt), Photosensitive drum. 5) Is there a scratch on the surface of the photosensitive drum? Clean the charging assemblies. YES: Replace the photosensitive drum. 6-88 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 358: The Back Of The Copy Is Soiled

    Fixing assembly 3) Does the problem occur vertically? YES: Check the fixing assembly for a scratch and dirt. Check the fixing roller for nip width. 6-89 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 359: The Copy Has A Displaced Leading Edge (Considerably Large Margin)

    ADJ>REGIST. Is the problem corrected? Perform the following: 1. Check the registration roller for deformation (wear). 2. Check the drive mechanisms of the registration roller. YES: End. 6-90 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 360: The Copy Is Wobbly

    YES: Check the developing assembly. Drum drive system 6) Does the problem occur at intervals of about 10 mm? YES: Check the cleaner assembly. Check the drum drive system. 6-91 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 361: The Copy Is Foggy Horizontally

    YES: End. Photosensitive drum, Lens drive assembly 4) Try replacing the photosensitive drum. Is the problem corrected? YES: End. Check the lens drive assembly for movement. 6-92 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 362: The Copy Is Blank

    Fit them securely (so that they are locked in place). YES: Replace the drum unit Developing bias connector 8) Is the connector (on the machine rear) for the developing bias con- nected? Connect the connector. 6-93 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 363: The Copy Is Solid Black

    5) Does the problem occur only in copy images? Perform the following: 1. Replace the reader controller PCB. 2. Replace the DC controller PCB. YES: Replace the CCD unit. 6-94 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 364: Troubleshooting Malfunctions

    Heater (open circuit), AC driver PCB 3) Is the electrical continuity of each heater normal? Replace the heater. YES: Check the wiring; if normal, replace the AC driver PCB. 6-95 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 365: E001

    YES: Replace the AC driver PCB. Thermistor (TH1/TH2), DC controller PCB 2) Replace the thermistor. Is the problem corrected? YES: End. Replace the DC controller PCB. 6-96 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 366: E002

    5) Try replacing the thermistor. Is the problem corrected? YES: End. DC controller PCB 6) Try replacing the heater. Is the problem corrected? YES: End. Replace the DC controller PCB. 6-97 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 367: E004

    (+) and -B3 (− − − − − ) change from 0 to about 5 V? Replace the DC controller PCB. YES: Replace the main motor. 6-98 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 368: E012

    2) Make the following selections in service mode: COPIER>I/O>DC- CON>. Is bit 6 of P003 ‘0’ (toner clogging)? YES: Replace MSW2. Replace the DC controller PCB. 6-99 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 369: E014

    (+) and J513-A1 (–) on the DC controller PCB change from 0 to about 5 V? Replace the pickup controller PCB. YES: Replace the pickup motor. 6-100 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 370: E019

    YES: If the cable connection up to the DC controller PCB is normal, re- place the waste toner full sensor (PS19). Replace the DC controller PCB. 6-101 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 371: E020

    2) Does the drive mechanism for toner feed inside the cartridge oper- ate smoothly? Correct the mechanism. YES: Replace the toner feed motor inside the cartridge. 6-102 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 372: E032

    2) Try replacing the deck main motor (M101) of the side deck. Is the problem corrected? YES: End. Check the harness from the DC controller PCB to the motor; if normal, replace the DC controller PCB. 6-103 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 373: E051

    Mount the switch properly. Stackless feed driver PCB, DC controller PCB 4) Try replacing the stackless drive PCB. Is the problem corrected? YES: End. Replace the DC controller PCB. 6-104 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 374: E065

    5) Check the wiring/connection from the HV-DC PCB to the primary charging assembly. Is it normal? Correct the wiring/connection. YES: Replace the HV-DC PCB. J730 T601 J723 F06-401-01 6-105 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 375: E067

    Replace the HV-AC PCB, and connector J722 to end the work. YES: Replace the HV-DC PCB, and connector J722 to end the work. J730 J721 J722 J723 F06-401-02 6-106 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 376: E068

    Clean the pre-transfer charging assembly, and make copies. If E068 is indicated, replace the pre-transfer charging assembly. YES: Replace the HV-AC PCB. J730 J741 J742 T1-S T1-Q J734 J722 J723 F06-401-03 F06-401-04 6-107 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 377: E069

    HV-DC PCB, Transfer/serration charging assembly 4) Try replacing the HV-DC PCB. Is the problem corrected? Replace the transfer/separation charging assembly. YES: End. J730 T701 J723 F06-401-05 6-108 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 378: E100

    Connect the connector securely. Laser scanner unit, DC controller PCB 3) Try replacing the laser scanner unit. Is the problem corrected? End. YES: Replace the DC controller PCB. 6-109 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 379: E111

    Scanner cooling fan (FM3), Reader controller PCB 3) Try replacing the scanner cooling fan (FM3). Is the problem cor- rected? End. YES: Replace the Reader controller PCB. 6-110 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 380: E121-0002

    2) (See the instructions on how to check the photointerrupters.”) Check the wiring form the Reader controller PCB to PS3; if nor- mal, replace PS3. YES: Replace the Reader controller PCB. 6-111 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 381: E211

    3) Try replacing the fluorescent lamp. Is the problem corrected? YES: End. Replace the reader controller PCB. 4) Is the connector J1702 on the the relay PCB connected properly? Connect it properly. 6-112 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 382: E219

    Scanner cooling fan (FM3), Reader controller PCB 3) Try replacing the scanner cooling fan (FM3). Is the problem cor- rected? End. YES: Replace the Reader controller PCB. 6-113 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 383: E240

    1) Turn offf and then on the power switch. Is the problem corrected? YES: End. Replace the Main controller PCB. Control panel PCB 2) Try replacing the control panel PCB. Is the problem corrected? YES: End. 6-114 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 384: E251

    Connect the connectors securely. CCD PCB, Reader controller PCB 2) Try replacing the CCD PCB. Is the problem corrected? YES: End. Replace the Reader controller PCB. 6-115 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 385: E315

    1) Is the connection of the cable between the ADF and the machine normal? Correct the connection. ADF controller PCB 2) Try replacing the ADF controller PCB. Is the problem corrected? YES: End. 6-116 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 386: E402

    Set the meter range to × 1Ω Ω Ω Ω Ω , and connect the meter probes as indi- cated. Is the resistance about 1.1Ω Ω Ω Ω Ω for each? Motor driver F06-401-07 Replace the belt motor (M2). 6-117 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 387: E404

    F06-401-08 Press the push switch (SW2). Does the delivery motor (M5) rotate? (To stop, press the push switch (SW2) once again.) YES: Go to step 3. 6-118 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 388 Does the voltage between connectors J3-2 (+) and J3-1 (–) on the ADF controller PCB change between 0 V and 5 V? Replace the delivery motor clock sensor (PI11). YES: Replace the ADF controller PCB. 6-119 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 389: E405

    J12-5 (+) and J12-4 (–) on the ADF controller PCB change between 0 V and 5 V? Replace the separation motor clock sensor (PI2). YES: Replace the ADF controller PCB. 6-120 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 390: E410

    Set the meter range to × 1Ω Ω Ω Ω Ω , and connect the meter probes as indi- cated. Is the resistance about 74Ω Ω Ω Ω Ω for each? conroller F06-401-13 Replace the pickup motor (M3). 6-121 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 391: E422

    3) Is the cable from the connector (J1) of the ADF controller PCB to the communication cable normal? Replace the cable. YES: Replace the ADF controller PCB. 6-122 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 392: E601

    Install the system software Connector 2) Are the connectors and the cables between the HDD and the main controller PCB connected properly? Connect the connectors and cables properly. 6-123 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 393: E676

    1) Turn off and the on the power switch. Is the problem corrected? YES: End. Replace the reader controller PCB (0001). Replace the DC controller PCB (0002). Replace the main controller PCB (0003). 6-124 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 394 Replace the DC controller PCB. Finisher controller PCB, DC controller PCB 3) Try replacing the finisher controller PCB. Is the problem cor- rected? YES: End. Replace the DC controller PCB. 6-125 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 395 Correct the connection and the cable. Reader controller PCB 2) Try replacing the reader controller PCB. Is the problem corrected? YES: End. Replace the main controller PCB. 6-126 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 396 1) Is the Ethernet card mounted properly? Mount the card properly. Ethernet card 2) Try replacing the Ethernet card. Is the problem corrected? YES: End. Replace the main controller PCB. 6-127 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 397: Pcb

    0 V? YES: Check the wiring and electrical continuity from the DC controller PCB to the relay board PCB; if normal, replace the relay board PCB. 6-128 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 398: E804

    Fixing the discharge fan (FM2), DC controller PCB 3) Try replacing the fixing heat discharge fan (FM2). Is the problem corrected? End. YES: Replace the DC controller PCB. 6-129 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 399: E820

    Pre-transfer charging fan (FM10), DC controller PCB 3) Try replacing the pre-transfer charging assembly fan (FM10). Is the problem corrected? End. YES: Replace the DC controller PCB. 6-130 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 400: E824

    Connect the connector securely. Separation fan (FM13), DC controller PCB 3) Try replacing the separation fan (FM13). Is the problem corrected? End. YES: Replace the DC controller PCB. 6-131 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 401: Ac Power Is Absent

    ∞ Ω and ∞ Ω ∞ Ω Replace the power switch. YES: Check the wiring of the AC power line. Check the connector for poor contact. 6-132 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 402: Dc Power Is Absent 1

    Repeat this on all connectors to find out the connector that activates the protection circuit, and check the wiring and DC load from that connector. Replace the DC power supply PCB. 6-133 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 403: Pickup Fails

    7) Open the right upper cover and the right lower cover, and put a screwdriver into the door switch. Does the feed/separation roller ro- tate when the Start key is pressed? YES: Go to step 9). 6-134 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 404 9) Find out which sensor has detected the jam in service mode: COPIER>I/O>IP. Is the sensor normal? Check the wiring and the lever; if normal, replace the sensor. YES: Remove the pickup assembly, and check the spring. 6-135 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 405: The Lifter Fails To Move Up

    0 to 24 V? Right deck (M13): J514-A4 Left deck (M14): J514-B1 YES: Replace the deck liter motor. Replace the DC controller PCB. 6-136 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 406: The Lifter Fails To Move Up (Pickup From Cassette)

    Cassette 3 (M16): J516-A4 Cassette 4 (M17): J516-B1 YES: Remove the lifter motor assembly, and check the gar; if normal, replace the motor. Replace the DC controller PCB. 6-137 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 407: Pickup Fails (Multifeeder)

    ↓ ↓ ↓ ↓ ↓ COPIER>FUNCTION>PART-CHK>CL-ON ↓ ↓ ↓ ↓ ↓ Check the wiring; if normal, replace the clutch (CL7). (J513-A8, A9 on DC controller PCB) 6-138 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 408 Check the wiring and the link; if normal, replace the solenoid (SL6). (J510-10, -11, -12 on controller PCB) DC controller PCB 8) Try replacing the DC controller PCB. Is the problem corrected? YES: End. 6-139 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 409: The Vertical Path Roller Fails To Rotate

    ↓ ↓ ↓ ↓ ↓ COPIER>FUNCTION>PART-CHK>CL-ON ↓ ↓ ↓ ↓ ↓ Check the wiring; if normal, replace the clutch (CL13). (J515-A3, -A4 on DC controller PCB) 6-140 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 410 ↓ ↓ ↓ ↓ ↓ Check the wiring; if normal, replace the clutch (CL15). (J517-A3, -A4 on DC controller PCB) YES: Replace the DC controller PCB. 6-141 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 411: The Registration Roller Fails To Rotate

    ↓ ↓ ↓ ↓ ↓ Check the wiring; if normal, replace the clutch (CL2). (J509-A4, -A5 on DC controller PCB) YES: Replace the DC controller PCB. 6-142 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 412: The No. 1 Mirror Base Fails To Operate

    Scanner motor driver PCB, Scanner motor (M5) 7) Try replacing the scanner motor drive PCB. Is the problem cor- rected? YES: End. Replace the scanner motor (M5). 6-143 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 413: The Pre-Exposure Lamp Fails To Go On

    YES: If the wiring is free of a fault, replace the inverter PCB. If the wiring is free of a fault, replace the DC controller PCB. 6-144 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 414: The Toner Feed Motor (M6) Inside The Cartridge Fails To Operate

    J504-B12 (+) and -B13 (− − − − − ) on the DC controller PCB change to about 24V? Replace the DC controller PCB. YES: Check the connection of the relay connectors J138 an J143. 6-145 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 415: The Drum Heater Fails To Operate

    Perform the following: 1. Replace TS1. 2. Replace the DC controller PCB. YES: Perform the following: 1. Replace the DC controller PCB. 2. Replace the control panel. 6-146 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 416: The "Add Toner" Message Fails To Go Off

    1) Is a card fitted in the card reader correctly? Fit the card correctly. Main controller PCB, Card reader 2) Can copies be made? Replace the main controller PCB. YES: Replace the card reader. 6-147 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 417: The "Add Paper" Message Fails To Go Off (Deck Right/Left)

    2) Is the output gear of the lifter motor or the gear of the cassette pickup assembly skipping teeth engagement? YES: Mount the lifter motor correctly. Or, replace the lifter motor and the cassette pickup assembly at the same time. 6-148 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 418: The Fixing Heater Fails To Operate

    6) Is the voltage at the following connectors on the DC controller PCB about 5 V? Heater Main heater (H1) J505-A11 Sub heater (H2) J505-A13 YES: Replace the AC driver PCB. Replace the DC controller PCB. 6-149 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 419: Pickup Fails (Side Paper Deck)

    PCB. Does it change from 24 to 0 V when the Start key is pressed? • J104-7 (CL101) • J104-12 (CL102) Replace the side deck driver PCB. YES: Check the wiring to the clutch; if normal, replace the clutch. 6-150 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 420: The Deck Lifter Fails To Move Up (Side Paper Deck)

    • When the deck is closed, 5 V. YES: Check the lever and the wiring; if normal, replace the sensor. Replace the side deck drive PCB. 6-151 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 421: Troubleshooting Feeding Faults

    The discussions of copy paper jams that follow are arranged according to these locations. The location of a jam and its nature may be checked in the machine’s service mode (COPIER>DISPLAY>JAM). F06-501-01 6-152 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 422: Pickup Assembly

    See the discussions under each fault. Pickup roller, Guide plate 4) Is the pickup roller deformed or worn? YES: Replace the pickup roller. Check the guide plate for deformation. 6-153 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 423: Separation/Feeding Assembly

    Feeding belt, Feeding fan 10) Are the two separation belts rotating without fail? Check the belt and the pulley. YES: Check the feeding fan to see if it operates. 6-154 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 424: Fixing/Delivery Assembly

    10) Does the delivery roller move smoothly? Check the delivery roller drive assembly. YES: Check the leading edge of the copy paper to see if there is a mar- gin. 6-155 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 425: Fixing, Delivery Assembly (Reversal Delivery Assembly)

    4) Try paper of a recommended type. Is the problem corrected? YES: Advise the user to use paper of a recommended type. Perform the following: 1. Check the high-voltage transformer. 2. Check the DC controller PCB. 6-156 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 426: Lower Feeding Assembly

    Replace CL16 or CL17. Pre-confluence sensor (PS14), Post-confluence sensor (PS15) 3) Are the pre-confluence sensor (PS14) and the post-confluence sen- sor (PS15) normal? Replace PS14 or PS15. 6-157 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 427: Faulty Feeding

    6) Is the lower roller pressure (nip width) as indicated? Adjust the nip width. YES: Try replacing the upper and lower rollers one after the other. 6-158 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 428: Arrangement And Function Of Electrical Parts

    CHAPTER 6 TROUBLESHOOTING 6 Arrangement and Function of Electrical Parts 6-159 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 429: Clutches

    CHAPTER 6 TROUBLESHOOTING 6.1 Clutches CL20 CL18 CL10 CL12 CL11 CL17 CL16 CL13 CL19 CL21 CL14 CL15 F06-601-01 6-160 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 430 Lower feeding right clutch CL17 Manual feed tray feeding clutch CL18 Deck (left) feeding clutch CL19 Developing cylinder deceleration clutch CL20 Delivery speed switching clutch CL21 T06-601-01 6-161 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 431: Solenoids

    CHAPTER 6 TROUBLESHOOTING 6.2 Solenoids SL11 SL10 F06-602-01 6-162 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 432 Manual feed pickup clutch solenoid Deck (right) pickup solenoid Deck (left) pickup solenoid Cassette 3 pickup solenoid Cassette 4 pickup solenoid SL10 Reversing flapper solenoid SL11 T06-602-01 6-163 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 433: Motors

    CHAPTER 6 TROUBLESHOOTING 6.3 Motors F06-603-01 6-164 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 434 Duplexing feed motor Deck (right) lifter motor Deck (left) lifter motor Horizontal registration motor Cassette 3 lifter motor Cassette 4 lifter motor Hopper internal toner feeder motor T06-603-01 6-165 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 435: Fans

    CHAPTER 6 TROUBLESHOOTING 6.4 Fans FM10 FM15 FM13 FM20 FM14 FM16 FM17 FM11 FM12 F06-604-01 6-166 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 436 Power supply cooling fan 1 FM11 Power supply cooling fan 2 FM12 Separation fan FM13 Laser scanner fan FM14 Developing fan FM15 System fan FM16 Delivery adhesion-proofing fan FM17 T06-604-01 6-167 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 437: Sensor 1

    PS43 PS44 PS45 PS57 PS17 PS56 PS15 PS20 PS14 PS27 PS26 PS13 PS24 PS58 PS12 PS21 PS18 PS25 PS22 PS34 PS23 PS31 PS48 PS32 PS33 F06-605-01 6-168 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 438 Front deck (left) paper level high sensor PS55 Manual feed tray cover open/closed sensor PS56 Copy board glass sensor PS57 Upper right cover open/closed sensor PS58 Toner cartridge cover open/closed sensor PS59 T06-605-01 6-169 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 439: Sensor 2

    CHAPTER 6 TROUBLESHOOTING 6.6 Sensor 2 SIZE4 SIZE3 SVR1 SIZE2 SIZE1 SVR2 SVR3 F06-606-01 6-170 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 440 Cassette 3 paper width volume SVR2 Cassette 4 paper width volume SVR3 Hopper internal toner sensor Hopper internal toner lower limit sensor Developing assembly internal toner sensor T06-606-01 6-171 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 441: Switches

    CHAPTER 6 TROUBLESHOOTING 6.7 Switches MSW8 MSW1 MSW2 MSW5 MSW7 F06-607-01 6-172 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 442 MSW1 Waste toner clog detecting switch MSW2 Manual feed tray cover open/closed detecting sensor MSW5 Front cover open/closed detecting switch MSW7 Cartridge motor drive switch MSW8 T06-607-01 6-173 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 443: Counters, Heaters, Fuses, And Others

    CHAPTER 6 TROUBLESHOOTING 6.8 Counters, Heaters, Fuses, and Others LED1 LED2 ELCB1 F06-608-01 6-174 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 444 Thermal switch Fixing heater thermal switch Leakage breaker ELCB1 Leakage breaker Pre-exposure lamp LED1 Pre-exposure lamp Pre-transfer expgure lamp LED2 Pre-transfer exposure lamp Hard disk Hard disk T06-608-01 6-175 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 445: Pcbs

    6.9 PCBs [27] [32] [16] [26] [28] [31] [19] [33] [29] [30] [18] [17] [23] [22] [24] [20] [13] [25] [10] [14] [11] [15] [12] F06-609-01 6-176 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 446 Cassette 4 paper level detection PCB PCB25 Laser scanner motor drier PCB PCB26 Intensity control PCB PCB27 Intensity sensor PCB PCB28 Original orientation detection PCB PCB29 T06-609-01 6-177 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 447: Variable Registers (Vr), Light-Emitting Diodes, And Check Pins By Pcb

    J1058 J1020 J1028 SW1002 J1002 J1021 LED1008 BAT1001 J1013 J1006 J1005 J1011 LED1001 LED1002 J1015 J1022 J1060 J1018 J1019 J1023 J1061 J1024 J1044 J1014 J1017 F06-610-01 6-178 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 448: Reader Controller Pcb

    J510 J509 J508 J523 J507 J512 J506 J513 J525 J514 J526 J515 J521 J527 J516 BAT1 J520 J517 J522 J505 J518 J501 J519 J502 J503 J504 F06-610-03 6-179 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 449: Hv-Dc Pcb

    The slide switch (SW101) is for factory use only, and is not used for servicing work in the field. (Keep it as it is set at the factory.) 6-180 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 450: Upgrading

    2) Hold down ‘2’ and ‘8’ on the keypad until the bottom of the touch panel indicates the message “Download Mode.” Partition Available for Formatting the Hard Disk /BOOTDEV 6-181 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 451: Making Pre-Checks

    Connect the machine with the PC using a cross Ethernet cable or a straight Ethernet cable and a HUB. The following shows how a cross Ethernet cable may be used. Cross Cable F06-701-01 6-182 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 452 If you are using a straight Ethernet cable and a HUB, you are encouraged to connect the machine with the PC on a one-on-one basis, outside the user’s network environment. Straight Cable Straight Cable F06-701-02 6-183 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 453 If both are in use, you must turn the machine off and then on first before making a switch-over (i.e., from Bi-Centronics to Network or vice versa), thereby preventing errors in the event of simultaneous writing operations. 6-184 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 454: Data Control

    You must install the files to use (System, RUI, HD Format , BOOT, Language) before ex- ecuting downloading. 1) Start up the Service Support Tool. 2) Under ‘Controlling Data’, select ‘To Next’. F06-702-01 6-185 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 455 CHAPTER 6 TROUBLESHOOTING 3) From the Control Work screen of the firmware, select ‘Registering Firmware’. F06-702-02 4) From the following screen, select ‘Register from selected folder’. F06-702-03 6-186 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 456 CHAPTER 6 TROUBLESHOOTING 5) Select the drive to which you have inserted the System CD. 6) Select the folder of the suitable version, and click ‘Register’. F06-702-04 6-187 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 457: Downloading The System Software, Rui, And Language Module

    4) Connect the machine’s power plug to the power outlet, and turn on the main power switch. 7.3.2 Downloading 1) Under ‘Downloading/Uploading’, select ‘To Next’. F06-703-01 6-188 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 458 ‘E744-0001’ will be indicated when the machine is started up for the first time; to reset the error, install a module of the correct version. 6-189 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 459 5) Click ‘Switch operation mode’ to bring up the Centronics Communication Mode Change screen. Select ‘High-Speed’, and press ‘OK’ to move to step 6). High-speed mode is not supported on Windows NT and Windows 2000. Memo F06-703-04 6-190 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 460 CHAPTER 6 TROUBLESHOOTING 6) Click ‘OK’ to start connection. F06-703-05 7) When connection is done, the following screen will appear. Click ‘OK’. F06-703-06 6-191 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 461 9) Select the files suited to the language and the country in question from the ‘list of soft- ware’ on the Service Support Tool screen, and click ‘Start’. F06-703-08 6-192 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 462 11) Check the progress bar, which indicates the progress of downloading. 12) When downloading ends, turn off the PC by making the following selections: OK>To Unit Selection Screen>OK>To Main Menu>Ending the Service Support Tool>End. 6-193 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 463: After Downloading

    You will not be able to prepare the BOOT ROM unless the following condi- Memo tions are met: • The model of the machine is the same; e.g., you cannot use the iR8500 BOOT ROM data to upgrade an iR5000. • The parameter “function” (COPY or PRINTER) must match when down- loading the system software;...

  • Page 464: Connection

    COPIER>FUNCTION>SYSTEM>DOWNLOAD. Then, click ‘OK’ so that the machine will be in download standby mode (notation “STNDBY”). 7.4.3 Preparing BOOT ROM The discussions that follow assume upgrading an iR8500 (COPY model). 1) User ‘Downloading/Uploading’, select ‘To Next’. F06-704-01 6-195 COPYRIGHT©...
  • Page 465 CHAPTER 6 TROUBLESHOOTING 2) Select the correct BOOT, and select an interface (bi-Centronics or Network). (The ex- ample selects iR8500 for BOOT, and Network is selected for Interface.) F06-704-02 3) To enter the IP address or the host name of the machine to connect, click ‘Set host name’.
  • Page 466 5) Check to see that the notation in the upper right indicates the IP address or the host name of the machine to connect; then, click ‘OK’ to start connection. F06-704-05 6-197 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 467 CHAPTER 6 TROUBLESHOOTING 6) When connection is done, the following screen appears. Click ‘OK’. F06-704-06 7) Select ‘BOOT ROM Download’ on the Service Support Tool screen. F06-704-07 6-198 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 468: After Downloading

    4) If a network cable is connected, connect it to the correct location, and turn on the machine’s main power switch. 5) When the machine has started up, start service mode, and check the version of the BOOT ROM: COPIER>DISPLAY>VERSION>BOOT-ROM. 6-199 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 469: Formatting The Hdd

    3) Connect the machine’s power plug to the power outlet; while holding down ‘2’ and ‘8’ of the keypad at the same time, turn on the main power switch. 7.5.2 Starting Formatting 1) Under ‘Downloading/Uploading’, select ‘To Next’. F06-705-01 6-200 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 470 3) At this time, if the notation in the upper right of the screen is ‘High-Speed’, go to step 5); if ‘Low-Speed’, go to step 4). F06-705-03 6-201 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 471 4) Click ‘change operation mode’ so that the Centronics Communication Mode change screen will appear. Select ‘high-speed’, and click ‘OK’; then, go to step 6). F06-705-04 5) Click ‘OK’ to start connection. F06-705-05 6-202 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 472 CHAPTER 6 TROUBLESHOOTING 6) When connection is done, the following screen will appear. Select ‘OK’. F06-705-06 7) When the Check screen appears, select ‘Format’. F06-705-07 6-203 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 473 8) When the Start Check screen appears, select ‘Start’ to format all partitions. F06-705-08 9) When the Start Check screen appears once again, select ‘Start’. F06-705-09 6-204 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 474 10) When formatting is done, the message “Format Finished” appears. Click ‘OK’. F06-705-10 11) To continue downloading system, select ‘To Unit Selection Screen’, and click ‘OK’. Then, start downloading system. F06-705-11 6-205 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 475: Points To Note When Formatting The Hard Disk

    This is a normal condition, and will disappear when you turn off and then on the machine twice. 6-206 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 476: Upgrading By Repacking The Dimm/Rom

    ROM [5]; IC110 (DIP type) Saddle Finisher-K3/K4 Finisher controller PCB: by replacement of ROM [5]; IC110 (DIP type) Saddle stitchere controller PCB: by replacement of ROM [6]; Q2 (DIP type) 6-207 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 477 Service Manual of the finisher. The BOOT ROM [7] on the main controller PCB may be upgraded using a PC. For details, see the descriptions under 7 “Upgrading.” F06-706-01 6-208 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 478: Backing Up Data

    It is recommended to back up the data whenever possible using the Service Support Tool when you have updated the service mode settings or the user mode settings. 6-209 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 479: Backing Up Data

    5) Make the following selections so that the machine will enter download standby mode (notation “STNDBY”): COPIER>FUNCTION>SYSTEM>DOWNLOAD. You can select ‘network’ as the interface for data backup. Here, the use of a bi-Centronics cable is assumed. Memo 6-210 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 480: Backing Up Data

    1) Under ‘Downloading/Uploading’, select ‘To Next’. F06-802-01 2) Select ‘SYSTEM’, and select ‘Connect’. The discussions that follow assume the use of a bi-Centronics cable as the interface. F06-802-02 6-211 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 481 F06-802-03 4) Click ‘Switch operation mode’ to bring up the Centronics Communication Mode Change screen. Select ‘High-Speed’, and click ‘OK’ to move to step 5). F06-802-04 6-212 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 482 CHAPTER 6 TROUBLESHOOTING 5) Click ‘OK’ to start connection. F06-802-05 6) When connection is done, the following screen appears. Click ‘OK’. F06-802-06 6-213 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 483 CHAPTER 6 TROUBLESHOOTING 7) Select ‘Upload the Backup Data’ on the Service Support Tool screen. F06-802-07 8) Select ‘ALL’, and select ‘Start Storing’. F06-802-08 6-214 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 484 11) When the selected file has been stored on the selected drive, the following screen will appear; make the following selections to end the Service Support Tool: OK>To Unit Se- lection Screen>OK>To Main Menu>Ending the Service Support Tool>End. F06-802-10 6-215 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 485: Downloading Backup Data

    CHAPTER 6 TROUBLESHOOTING 8.2.4 Downloading Backup Data 1) Under ‘Downloading/Uploading’, select ‘To Next’. F06-802-11 2) Select ‘SYSTEM’, and select ‘Connect’. F06-802-12 6-216 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 486 CHAPTER 6 TROUBLESHOOTING 3) Select ‘OK’, and start connection. F06-802-13 4) When connection is done, the following screen appears. Click ‘OK’. F06-802-14 6-217 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 487 CHAPTER 6 TROUBLESHOOTING 5) Select ‘Download the backup Data’. F06-802-15 6) Select the file to download, and select ‘Start Writing’. F06-802-16 6-218 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 488 Select ‘OK’. F06-802-17 8) Make the following selections to end the Service Support Tool: To Unit Selection Screen>OK>To Main Menu>Ending the Service Support Tool>End. 6-219 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 489: Managing Backup Data

    You need not connect a PC to the machine to do so. 1) Under ‘Controlling Data’, select ‘To Next’. F06-802-18 2) Select ‘Controlling Backup Data’. F06-802-19 6-220 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 490 3) Select the file to delete from the list of ‘Backup Data Stored on Computer’; then select ‘Remove’. F06-802-20 4) When the Delete Check screen appears, check the description for the selected file, and select ‘Remove’. F06-802-21 6-221 COPYRIGHT© 2001CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 491 5) When the Delete Finish screen appears, click ‘OK’. Make the following selections to end the Service Support Tool: Return to Previous Screen>Return to Main Menu>Ending the Service Support Tool>End. F06-802-22 6-222 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 492 APPENDIX COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 493 Mirror FY9-3040 For adjusting the distance positioning tool between No. 1 and No. 2 (front, rear) mirrors. NA-3 test sheet FY9-9196 For adjusting images and making checks. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 494 For making electrical checks (attachment to the meter). Tester extension FY9-3039 For making electrical Pin (L-tipped) checks (attachment to the meter). D-10 Test Sheet FY9-9129- For adjusting images. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 495 *Rank: Each service person is expected to carry one. Each five or so service persons is expected to carry one. Each workshop is expected to carry one. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 496 Silicone oil • FY9-6011 (50 cc) e.g., scanner rail. Conducting Drum heater contact Fluorine poly ethyl, • FY9-6008 (10 g) grease Poly tetra fluorine eth- ylene A-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 497: Service Mode

    Service Mode COPYRIGHT© 2001 CANON INC. 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 498: Construction Of Service Mode

    Select a Level 2 item from the list of items. Level 3 Level 3 Level 3 Level 3 Items screen Items screen Items screen Items screen Previous/ Previous/ Previous/ Next page Next page Next page F00-101-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 499: Starting Service Mode And Making Selections

    ” in the control panel. Copier service mode COPIER FEEDER ADF service mode if installed. SORTER Finisher service mode if installed. BOARD Accessory board service mode if installed. F00-102-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 500: Ending Service Mode

    PRINT). If the label lacks items, use its margin. You can also print out a complete list of service mode settings: COPIER>ADJUST/OP- TION/COUNTER; COPIER>FUNCTION>MISC-P>P-PRINT. Service Label F00-104-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 501: Basic Operation

    1.5.2 Level 1/Level 2 Items Screen Level 1 items VERSION Touch to select. USER DPOT ACC-STS ANALOG Level 2 items CST-STS SENSOR MISC Touch to select. HV-STS ALARM-2 F00-105-02 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 502: Level 3 Items Screen

    Press to switch between + and -. Stop key: press to stop each operation. Clear key: press to clear a value. Start key: press to make copies without ending service mode. F00-105-04 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 503: Copier

    SERVICE MODE 2 COPIER 2.1 DISPLAY The following appears in response COPIER>DISPLAY: VERSION USER DPOT ACC-STS ANALOG CST-STS SENSOR MISC HV-STS ALARM-2 F00-201-01 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 504 Not used. BOOT-ROM Indicates the BOOT ROM version of the main controller assembly. DIAG-DVC Indicates the version f the self diagnostic device. Indicates the version of the RUI. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 505 LANG-NO Indicates the version of the Norwegian language module. LANG-PL Indicates the version of the Polish language module. LANG-PT Indicates the version of the Portuguese language module. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 506 A, 03: all sizes) COUNTER Indicates the type of count control of the soft counter. (00: 100V, 01: 208/ 230V) MODEL Indicates the type of machine. (1: iR8500) COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 507 Indicates the connection of a LIPS board. (0: no, 1: yes) PS/PCL Indicates the connection of the PS/PCL. (0: no, 1: PS/PCL, 2: PS kanji) RIP1 Not used. S-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 508 Indicates the width of paper in cassette 3 in terms of paper size. WIDTH-C4 Indicates the width of paper in cassette 4 in terms of paper size. WIDTH-MF Indicates the width of paper in the manual feed tray. S-11 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 509 FFff: ADF jam code (T00-201-05) Indicates the source of paper. T00-201-06 HHHHHH Indicates the soft counter of the source of paper. IIIII Indicates the size of paper. S-12 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 510 3 stationary jam xx2C knurled belt HP sensor/stack delivery sensor stationary jam xx31 inserter paper set sensor pickup paper absent jam T00-201-04 (1/2) S-13 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 511 003E 1st sheet pre-reversal stationary 3 003F 1st sheet pre-reversal stationary 4 0041 reversal stationary 004A 1st sheet reversal stationary 0052 reversal pickup delay 0054 reversal pickup stationary T00-201-05 (1/3) S-14 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 512 00F2 belt speed switch error 00F3 belt status error 00F4 image leading edge output timing error 00F8 reversal speed setting error 00F9 reversal speed switch error T00-201-05 (2/3) S-15 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 513 Indicates the applicable detail code. if none, ‘0000’ Indicates the location of occurrence. 0: copier/main controller 1: feeder 2: finisher 3: C.F.F. 4: reader 5: printer 6: PDL Not used S-16 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 514 Indicates the level of current of transfer charging (µA). Indicates the level of current of separation charging (µA). BIAS Indicates the level of developing bias DC (V). S-17 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 515 Indicates the measurement taken of the dark era potential (VD) for printer (PDL) images. (V) (optimum reference: VDT-P ±6 V) VDT-P Indicates the target value of the dark area potential (VD for printer (PDL) images. (V) S-18 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 516 STM-P-S Indicates the lamp stop position for stream reading (small size). (0 to 6) SCAN-LMP Indicates the number of times the scanning lamp has gone ON. S-19 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 517 T00-201-07 FFFF Indicates the applied alarm code. T00-201-07 GGGG Indicates the applicable detail code. HHHHHHHH Indicates the reading of the total counter at time of occurrence. S-20 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 518 0004 laser driver cooling fan alarm 0005 scanner motor cooling fan alarm 0006 developing fan alarm 0007 delivery adhesion-proofing fan alarm 0010 stream reading fan alarm T00-201-07 (1/2) S-21 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 519 Alarm code stapler mechanism of sorter/finisher 0001 staple absent saddle stitcher mechanism 0001 stitch staple absent puncher mechanism of sorter/finisher 0001 punch waste paper full T00-201-07 (2/2) S-22 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 520: I/O

    FEEDER SORTER Input/output port of finisher controller PCB Input/output port of main controller MN-CON F00-202-01 Guide to the Screen P001 xxxxxxxxxxxxxxxx bit 0 bit 15 Address S-23 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 521 0: toner absent fixing web length sensor 1: web absent fixing web length warning sensor 1: web absent warning cartridge detection MSW1 0: present S-24 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 522 PS59 1: closed through path tray in/out detection 0: in fixing/feeding unit releasing lever sensor PS28 1: released BD error detection 1: error S-25 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 523 FM14 1: stop detection signal delivery anti-adhesion fan stop detection FM17 1: stop signal developing fan stop detection signal FM15 1: stop not used not used S-26 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 524 1: shift to rear transfer/separation charging wire cleaner 1: shift to rear drive transfer/separation charging wire cleaner 1: shift to front drive not used not used S-27 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 525 1: ON drum fan half speed 1: ON power supply fan full speed FM11/12 1: ON power supply fan half speed FM11/12 1: ON S-28 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 526 SL102 1: ON not used not used not used not used not used not used P020 deck open switch SW100 1: ON deck paper detection 1: paper present S-29 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 527 P022 not used not used not used not used not used not used not used not used P023 not used not used not used not used S-30 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 528 ON detection 1: ON, 0: OFF not used not used scanner motor cooling fan 1: OFF stream reading fan 1: OFF inverter fan 1: OFF not used S-31 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 529 1: OFF, 0: ON CCD/AP sync clock CCD/AP sync data CCD/AP RING2 load signal CCD/AP F-AP load signal CCD/AP B-AP load signal not used not used S-32 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 530 1: original present pre-reversal sensor 1: original present IO-P03 not used original sensor LED 0: light-emitting not used not used not used not used not used not used S-33 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 531 A during output, alternately ‘0’ and ‘1’ IO-P08 image leading edge signal 1: image leading edge pre-registration roller paper sensor 0: original prevent S-34 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 532 3 1: ON original detection switch 4 1: ON push switch 1 0: ON push switch 2 0: ON push switch 3 0: ON S-35 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 533 ‘0’ and ‘1’ delivery motor B during output, alternately ‘0’ and ‘1’ upper path switch solenoid 0: ON buffer path switch solenoid 1: keep, 0: release S-36 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 534 1: constant, 0: speed up inlet motor ON 1: OFF, 0: ON inlet motor CW*/CCW 1: CCW, 0: CW not used not used not used not used S-37 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 535 EXPNDER chip selects 0: cs IPC chip select 0: cs PI0 chip selects 0: cs EPROM chip select 0: cs not used not used not used S-38 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 536 1: OFF, 0: ON paddle motor A paddle motor B paddle motor ON 1: OFF, 0: ON folder motor gain switch 1: high speed not used S-39 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 537 0: HP rear aligning plate home position sensor 1: HP front aligning plate home position sensor 1: HP tray auxiliary plate extraction sensor PI10 1: HP S-40 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 538 B4 folder No. 1 stopper solenoid ON SL75 1: ON folder path residual paper detection 2 PI77 1: paper present folder path residual paper detection 3 PI74 1: paper present S-41 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 539 1: absent, 0: present tray A paper detection PI20 1: absent, 0: present tray A paper detection PI17 1: absent, 0: present punch feed path detection buffer path sensor S-42 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 540 CCW drive motor 0: CCW No. 1 paper deflecting plate solenoid drive SL41 0: ON signal No. 2 paper deflecting plate solenoid drive SL42 0: ON signal S-43 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 541 0: connected connection not used feed roller phase detection PI53 1: flag present aligning plate home position detection PI48 0: home position connection not used not used S-44 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 542 PI55 1: connected connector connection saddle tray paper detection 2 PI43 1: paper present saddle tray paper detection 3 PI44 1: paper present S-45 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 543 DA12 not used P060 staple detection (rear) MS31 92 or higher, staple present P061 staple detection (front) MS33 92 or higher, staple present P062 not used S-46 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 544 EEPROM R/B# 0: busy, 1: ready flash ROM R/B# 0: busy, 1: ready serial ROM connection detection 1: connected operation enable (card reader) 0: enable S-47 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 545 UI detection 0: color UI present BW VI detection 0: black and white UI present BAT board detection 0: present not used not used S-48 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 546: Adjust

    CST-ADJ HV-TR DEVELOP HV-SP DENS F00-203-01 A change to each item under COPIER>ADJUST becomes valid when the main power switch is turned off and then on. S-49 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 547 Range of adjustment 1 to 9; default: 5 Copy density White White Original density A higher setting generates darker characters. A lower setting generates lighter characters. F00-203-02 S-50 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 548 Use it to adjust the image read start position (sub scanning direction). Range of adjustment 0 to 1000 (1 being equal to 0.1 mm) Lower setting Read start position Higher setting Original Vertical size plate F00-203-04 S-51 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 549 ADF (ADF horizontal registration adjustment). Range of adjustment 0 to 1000 (1 being equal to 0.1 mm) Print image Lower setting Higher setting Feed direction F00-203-06 S-52 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 550 CCD. 0 to 1023 LUT-O-R2 Use it to enter the data for link correction of the last half of odd-numbered pixels of the CCD. 0 to 1023 S-53 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 551 CCD. 0 to 1023 LUT-O-F4 Use it to enter the data for link correction of the first half odd-numbered pixels of the CCD. 0 to 1023 S-54 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 552 CCD. 0 to 1023 LUT-E-F5 Use it to enter the data for link correction of the first half even-numbered pixels of the CCD. 0 to 1023 S-55 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 553 If you have replaced the laser unit, enter the power adjustment value for laser B indicated on the unit. DLY-FINE Use it to fine-adjust (correct) the discrepancy of laser A/laser B. Range of adjustment -16 to 16 S-56 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 554 RAM on the DC controller PCB, on the other hand, be sure to enter the settings indicated on the service label. (Chapter 6 “Troubleshooting”>2.7.8 “When Replacing the DC con- troller PCB”) S-57 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 555 Use it to enter the image leading edge non-image width value. Range of adjustment 0 to 2392 BLANK-B Use it to enter the image trailing edge non-image width value. Range of adjustment 0 to 2392 S-58 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 556 -50 to 50 (1 being equal to 1 V) OHP-OFST Use it to enter the offset value for transparency potential control Vdc. Range of adjustment -50 to 50 (1 being equal to 1 V) S-59 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 557 If you have cleared the RAM on the DC controller PCB or replaced the DC controller PCB, enter the setting indicated on the service la- bel. S-60 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 558 RAM on the DC controller PCB, on the other hand, be sure to enter the settings indicated on the service label. (Chapter 6 “Troubleshooting”>2.7.8 “When Replacing the DC con- troller PCB”) S-61 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 559 If you have cleared the RAM on the DC controller PCB or replaced the DC controller PCB, enter the setting indicated on the service la- bel. S-62 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 560 Use it to adjust the horizontal registration for re-pickup. • If the image is displaced to the front, increase the setting. Range of adjustment -100 to 100 (1 being equal to 0.1 mm) S-63 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 561 Use it to enter the paper width basic value for the manual feed tray. (A4R). Range of adjustment 0 to 255 If you have replaced the paper width detecting VR, execute the fol- lowing service mode: FUNCTION>CST. S-64 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 562 PCB, enter the setting indicated on the service label. PRE-TR Use it to enter the output adjustment value for the pre-transfer exposure lamp. Range of adjustment 20 to 80 S-65 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 563 SERVICE MODE COPIER>FUNCTION 2.4 FUNCTION The following screen appears in response to COPIER>FUNCTION: INSTALL FIXING SYSTEM PANEL LASER PART-CHK CLEAR MISC-R MISC-P CLEANING F00-204-01 S-66 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 564 If the number entered is 1, cards between No. 1 and No. 1000 may be used. If the number entered is 2001, cards between No. 2001 and 3000 may be used. S-67 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 565 4) See that the machine stops automatically after making adjustments. 5) All items of service mode (COPIER>ADJUST>LAMP, COPIER> ADJUST>CCD) are updated; print a service label, and store it away. (rear) Standard white paper F00-204-02 S-68 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 566 ADJUST>CCD) are updated; print out the service label, and store it away. Place the 10-graduation chart on the copyboard glass with graduation part is downside. F00-204-03 S-69 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 567 Potential Sensor/Potential Control PCB”) <Using the Mode> 1) Select the item, and press the OK key. 2) See that the machine automatically stops after adjusting the offset. S-70 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 568 2) Select MF-A4R, and press the OK key. • After auto adjustment, the value will be stored. 3) Likewise, repeat steps 1) and 2) for A6R, and A4. S-71 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 569 2) See that the machine executes automatic cleaning of the charging wire 5 times in succession. 3) See that the machine stops automatically after cleaning the wire. S-72 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 570 4) Measure the width of the indicated area. Standard: 9.0mm±0.5mm Feed direction Middle of paper Standard: |a-c|=0.5mm or less F002-204-04 a and b are points 10 mm from both ends of the paper. S-73 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 571 <Using the Mode> 1) Select the item, and press the OK key. 2) Press the symbol + appearing on the touch panel in sequence (9 in to- tal). S-74 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 572 Use it to check the operation of the motor. <Using the Mode> 1) Select the item, and press the OK key. • The motor will remain ON for 20 sec and then go OFF. S-75 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 573 Pickup motor (M2) Duplex feed motor (M12) Fixing motor (M3) Side paper deck main motor (M101) Inside cartridge toner feed motor (M6) 10,11 not used T00-204-03 S-76 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 574 Fixing feed unit lock solenoid (SL4) Manual feed pickup clutch solenoid Fixing feed unit lock solenoid (SL4) (SL6) Shutoff Manual feed pickup clutch solenoid Side paper deck pickup solenoid (SL6) T00-204-04 S-77 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 575 Use it to clear the error history. <Using the Mode> 1) Select the item, and press the OK key. 2) Turn off and then on the main power switch. E354-CLR E355-CLR S-78 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 576 Usee it to clear the alarm history. <Using the Mode> 1) Select the mode, and press the OK key. 2) Turn off and then on the main power switch. S-79 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 577 Use it o print print a list of user modes (from service mode). <Using the Mode> 1) Select the item, and press the OK key. • A list of user modes will be printed out. S-80 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 578 6) Select the item, and press the OK key. 7) Download using the Service Support Tool. (Chapter 6 “Troubleshoot- ing”>7 “Upgrading”) 8) When done, turn off and then on the main power switch. S-81 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 579 <Using the Mode> 1) Select the item. You cannot select ‘0’ and ‘4’. 2) Press the OK key. 3) When done, see that 'OK' is indicated. S-82 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 580 BODY USER INT-FACE F00-205-01 For each item under COPIER>OPTION, the updated settings will become effective when the main power switch is turned off and then on. S-83 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 581 1: auto control by environment sensor (default) 2: start idle rotation when fixing roller reaches 100°C 3: start idle rotation when main power switch is turned on S-84 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 582 Use it to enable/disable density variation mode during printing (PDL input). Setting 0: correct target value to enable variation of density during printing (default) 1: do not vary density during printing S-85 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 583 3: 1000 single-sided (500 sheets*) copies if absolute moisture content is 9 g or more; 250 single-sided (125 sheets*) copies if fewer 4: do not stop rotation (*: Double-sided copying) S-86 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 584 0: normal (face-up delivery for all if for single original) 1: face-up delivery for one set of prints of single original; face-down de- livery for multiple sets (default) S-87 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 585 Use it to change the transfer/separation output setting for pickup from cas- sette 4 (to deal with various problems). Setting 0: for plain paper (default) 1: for re-cycled paper 2: for tracing paper S-88 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 586 0: night drum heater ON (default) 1: monitor ambient humidity every 2 hr, and turn off drum heater if absolute moisture content is 9 g or less S-89 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 587 Use it to set black band increase month mode (for August). Setting Same the setting of ‘BK-BD-1’. BK-BD-9 Use it to set black band increase month mode (for September). Setting Same the setting of ‘BK-BD-1’. S-90 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 588 • When disabled (no warning), the message will be issued only when ser- vice mode is started. Setting 0: OFF (no warning; default) 1: ON (issue warning) S-91 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 589 Use it to set the type of date notation. For the 208V model, default is ‘1’. Setting 0: YYYY MM/DD (default) 1: DD/MM YYYY 2: MM/DD/YYYY S-92 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 590 1: extra-length mode (indicate key) SPECK-DP Use it to enable/disable the indication of the result of dust detection in stream reading mode. Setting 0: disable (default) 1: enable S-93 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 591 Use it to set the sequence of reading double-sided original when original orientation detection is enabled. Setting 0: read from back to face (default) 1: read from face to back S-94 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 592 203 copy (L) 228 copy (Bk/S) 204 copy (S) 229 copy (4C + mono/L) 205 copy A (total 1) 230 copy (4C + mono/S) T00-205-01 (1/3) S-95 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 593 332 PDL print (total 2) 602 box print (total 2) 333 PDL print (L) 603 box print (L) 334 PDL print (S) 604 box print (S) T00-205-01 (2/3) S-96 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 594 702 received file print (total 2) 802 report print (total 2) 703 received file print (L) 803 report print (L) 704 received file print (S) 804 report print (S) T00-205-01 (3/3) S-97 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 595 After selecting a paper size, be sure to turn off and then on the main power switch. Setting 6: A4 (default) 15: B5 18: LTR S-98 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 596 Government LETTERR A-LGL Argentine LEGAL G-LGL Government LEGAL 11x17 11x17 FOLI FLIO LTRR LETTERR A-OFI Argentine OFFICIO LETTER M-OFI Mexican OFFICIO STMT STATEMENT STMTR STATEMENTR LEGAL T00-205-02 S-99 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 597 Use it to set conditions for connection of an external controller. IMG-CONT Use it to set the eternal controller detecting switch. Setting 0: external controller absent (default) 1: external controller prevent S-100 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 598: Test

    SERVICE MODE 2.6 TEST The following screen appears in response to COPIER>TEST: NETWORK F00-206-01 S-101 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 599 (normal printing) halftone grid solid black 17-gradation vertical straight lines (with image correction) horizontal straight lines 17-gradation halftone (for laser delay check) (without image correction) T00-206-01 S-102 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 600 F00-206-03 3 17-Gradation (without image correction; PG-TYPE3) Gradation faulty laser system Uneven density primary charging assembly faulty developing system F00-206-04 S-103 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 601 F00-206-06 6 Solid Black (PG-TYPE6) [1] White Spots faulty transfer [2] White Lines faulty shading (dirt on standard white plate) F00-206-07 S-104 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 602 SERVICE MODE 7 Vertical lines (PG-TYPE7) Straight lines (sub scanning direction) faulty BD F00-206-08 8 Horizontal Lines (PG-TYPE8) Straight lines (main scanning direction) displaced laser beam F00-206-09 S-105 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 603 COPIER>ADJUST>LASER>DLY-FINE. • COPIER>ADJUST>LASER>DLY-FINE Range of adjustment: -16 to 16 (‘1’ being a 1/16 pixel; 1 pixel being the sum length of a band b) S-106 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 604 NETWORK>PING. Then, enter the IP address found in step 4); press the OK key, and then press the Start key. • If the connection to the network is normal, ‘OK’ will be indicated. (End the work.) S-107 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 605 However, suspect a fault in the user’s network environment; report to the system administrator, and ask to remove the fault. S-108 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 606: Counter

    • The counter will be cleared to ‘00000000’. <Grouping of Paper Sizes (small and large)> Large (L): papers larger than A4/LTR Small (S): papers equal to or smaller than A4/LTR S-109 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 607 2-SIDE double-sided 2nd side pickup counter Level 2: FEEDER Level 3: FEED feeder pickup total counter S-110 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 608: Feeder

    (Be user to clear the reading after replacing the fixing web.) WST-TNR waste toner counter (Be sure to clear the reading after disposing of the waste ton.) S-111 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 609 FIX-TH1 fixing main thermistor (TH1) counter FIX-TH2 fixing sub thermistor (TH2) counter FX-TSW fixing thermal switch (TP1) counter OZ-FIL1 ozone filter counter AR-FIL1 air filter counter S-112 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 610 M-PU-RL manual feed tray pickup roller counter M-SP-RL manual feed tray separation roller counter M-PU-CL manual feed tray pickup clutch counter S-113 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 611 DEV-FAN developing fan counter DV-FP-SL paper solenoid counter DLV-FAN delivery anti-adhesion fan counter PWS-FAN power supply fan counter INV-FAN inverter cooling fan counter S-114 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 612 2 SORT-2 finisher lower path counter INSRTR2 finisher inserter 2 counter STCK finisher stack processing counter SDL-STCK finisher saddle stack processing counter S-115 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 613: Display

    Use it to adjust the stopped position of original for pickup from the ADF (manual feed tray). Range of adjustment -30 to 30 (1 being equal to 0.5 mm) To use, see the descriptions under FEEDER>ADJUST>DOCST. S-116 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 614 Use it to adjust the speed of the reversal motor. A higher setting increases the speed. Memo Range of adjustment -30- to 30 (1 being equal to 0.1%) S-117 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 615: Function

    <Using the Mode> 1) Select the item, and press the OK key. 2) See that the registration roller starts to rotate. Press the Stop key to stop S-118 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 616 The detecting mechanism is enabled only when ‘3: AB/INCH’ is se- lected in service mode: COPIER>OPTION>BODY>MODEL-SZ. Memo SLW-SPRT Use it to decrease the separation speed for original pickup. Setting 0: normal mode (default) 1: deceleration move S-119 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 617: Sorter

    4) Make a test print of the Test Chart, and check to make sure that the hole position is as indicated. Paper (feed direction) Lower setting Higher setting F00-401-01 S-120 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 618 Use it to set the margin width (W) on both sides of the fold when the saddle sticker is used. Setting 0: normal width (5 mm; default) 1: large width (10 mm) F00-402-01 S-121 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 619: Board

    Use it to disable the function of slot 3 when the board fitted to slot 3 for the PCI is faulty. Setting 0: normal (default) 1: OFF (disable board function) S-122 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 620 Error Code COPYRIGHT© 2001 CANON INC. 2000 CANON iR8500 REV.0 MAR. 2001...

  • Page 621: Error Codes

    3 sec. You must clear the data in RAM on the DC controller for E000, E001, E002, E003, E004, E005, E013, E020, or E717. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 622 0004 The reading of the main thermistor is lower than that of the sub thermistor by 50°C for 1 sec. Remarks You must clear the error in service mode: COPIER>FUNCTION>CLEAR> ERR. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 623 0000 A short circuit occurs in the SSR used to drive the fixing heater. (hard circuit detection) Remarks You must clear the error in service mode: COPIER>FUNCTION>CLEAR> ERR. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 624 (MSW2) is faulty. The DC controller PCB is faulty. Condition 0000 The waste toner feedscrew cannot rotate, and the switch (MSW2) is pushed multiple times within a specific period of time. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 625 The DC controller PCB is faulty. Condition 0000 The absence of toner inside the developing assembly is detected for 3 sec or more although toner is supplied to the developing assem- bly. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 626 (M15) is faulty. The DC controller PCB is faulty. Condition 0000 The home position signal is not detected within 5 sec while the horizontal registration motor (M15) drive signal is generated. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 627 The wiring is faulty. (short circuit, open circuit) Condition 0000 A fault (leakage) in the high-voltage output to the transfer charging assembly is detected. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 628 0001 The lock signal arrives for 5 sec or more although the laser scanner cooling fan (FM3) is driven. 0002 The lock signal arrives for 5 sec or more although the laser driver cooling fan (FM5) is driven. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 629 The wiring is faulty. (short circuit, open circuit) Condition 0000 The reading of temperature around the fluorescent lamp is 170°C or higher while the fluorescent lamp is OFF. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 630 70°C within 5 min after it is turned on. Or, during standby or read- ing, the heater does not reach 75°C within 3 min after it is turned E-10 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 631 The reader controller PCB is faulty. Condition 0000 The lock signal (FM9LCK) arrives for 5 sec or more although the inverter cooling fan (FM9) is driven. E-11 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 632 The reader controller PCB is faulty. Condition 0000 When reading an image, no image read end communication from the CCD/AP PCB arrives at the reader controller PCB within 60 sec. E-12 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 633 (PI2) is faulty. The ADF controller PCB is faulty. Condition 0000 When the separation motor drive signal is generated, no clock sig- nal is generated for 200 msec. E-13 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 634 While the ADF remains out of order, disconnect its lattice connector, and place the original on the copyboard glass to continue making prints. E-14 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 635 0001 The checksum of the EEPROM has an error (offset value error of aligning plate). 0002 The checksum of the EEPROM has an error (D/A conversion value error in motor drive or sensor adjustment value). E-15 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 636 00FF When the motor is in operation, the clock signals from the stack delivery motor clock sensor indicate 50 mm /sec or less for 1 sec. E-16 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 637 0001 The stapler does not return to stapling home position when the sta- pler motor is driven for 0.5 sec. 0002 The stapler does not leave stapling home position when the stapler motor is driven for 0.5 sec. E-17 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 638 4 sec. 0002 The aligning plate does not leave the home position when the front aligning plate motor is driven for 4 sec. E-18 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 639 0001 The power supply fan is identified as being at rest for 2 sec or more. 0002 The feeding/cooling fan is identified as being at rest for 2 sec or more. E-19 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 640 1 sec or more. 0002 The shutter does not leave home position when the paddle motor is rotated for 1 sec or more. E-20 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 641 0002 The punch paper edge sensor (PI21) does not leave home position when the punch sensor slide motor is driven for a specific period of time. E-21 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 642 (PI27) is faulty. The punch driver PCB is faulty. Condition 00FF When the punch waste paper feed motor is in operation, the input from the punch waste paper feed sensor does not change. E-22 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 643 0.4 sec or more. 0002 The guide home position sensor does not go OFF when the guide motor is driven for 1 sec or more. E-23 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 644 CW for 0.5 sec or more. 0002 The saddle front home position switch does not go OFF when the saddle front motor is rotated CCW for 0.5 sec or more. E-24 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 645 0002 The connector of the paper pushing plate home position sensor is disconnected. 0003 The connector of the paper pushing plate leading edge position sensor is disconnected. E-25 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 646 (as detected) for 1 sec or more from the start of initial rotation of the host machine or the start of printing. E-26 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 647 The battery for image memory is faulty. The main controller PCB is faulty. Condition 0000 A fault is detected in the voltage of the battery for image memory. E-27 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 648 Advise the user that it is a good idea to send print data item-by-item instead of all at the same time. E-28 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 649 The and controller PCB is faulty. The reader controller PCB is faulty. Condition 0000 The communication IC (IPC) on the ADF controller PCB is out of order. E-29 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 650 The cable connector has poor connection. The reader controller PCB is faulty. Condition 0001 The main controller PCB detects a fault in the communication be- tween the reader controller PCB and the main controller PCB. E-30 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 651 This error will automatically reset the language selection function of user mode. Use the language module (Japanese or English) built into the system software next time when you turn off and then on the machine. E-31 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 652 The wiring is faulty (short circuit, open circuit). the drum fan (FM8) is faulty. The DC controller PCB is faulty. Condition 0000 The lock signal is detected for 5 sec or more although the drum fan is driven. E-32 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 653 The DC controller PCB is faulty. Condition 0000 The lock signal is detected for 5 sec or more although the separa- tion fan is driven. E-33 COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001...
  • Page 654 Office Imaging Products Quality Assurance Center CANON INC. Printed in U.S.A. REVISION 0 (MAR. 2001) (30359, 32205, 35870, 28353) 5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302-8501 Japan CANON iR8500 REV.0 MAR. 2001 PRINTED IN U.S.A. COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000...
  • Page 655 This publication is printed on 100% recycled paper. PRINTED IN U.S.A. 0301AB0.76-0...

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