Page 1: Service Manual
Service Manual MF4600 Series imageCLASS MF4690 Jul 18 2007...
Page 3 Canon will release technical information as the need arises. In the event of major changes in the contents of this manual over a long or short period, Canon will issue a new edition of this manual.
Page 4: Introduction
Introduction Symbols Used This documentation uses the following symbols to indicate special information: Symbol Description Indicates an item of a non-specific nature, possibly classified as Note, Caution, or Warning. Indicates an item requiring care to avoid electric shocks. Indicates an item requiring care to avoid combustion (fire). Indicates an item prohibiting disassembly to avoid electric shocks or problems.
Page 5 Introduction The following rules apply throughout this Service Manual: 1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with refer- ence to the timing of operation. In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol , the arrow indicates the direction of the electric signal.
Page 7: Table Of Contents
Contents Contents Chapter 1 Introduction 1.1 Product Specifications ..........................1- 1 1.1.1 Names of Parts................................ 1- 1 1.1.1.1 External View ................................... 1- 1 1.1.1.2 Section View (Host Machine)..............................1- 3 1.1.1.3 Section View (ADF).................................. 1- 3 1.1.1.4 Control panel.................................... 1- 4 1.1.2 Safety ..................................
Page 8 Contents 4.1 Basic Operation ............................4- 1 4.1.1 Basic Operation ...............................4- 1 4.1.2 Original Detection ..............................4- 2 4.2 Detection Jams............................4- 2 4.2.1 Jam Detection ................................4- 2 4.3 ADF ................................4- 3 4.3.1 Pick-up Roller................................4- 3 4.3.1.1 Removing the ADF Pickup Roller ............................4- 3 4.3.2 ADF Motor................................4- 3 4.3.2.1 Preparation for Removing the ADF Motor..........................
Page 9 Contents 7.3.3 Stationary Jams............................... 7- 3 7.3.3.1 Pickup Stationary Jam ................................7- 3 7.3.3.2 Delivery Stationary Jam ................................7- 3 7.3.4 Other Jams ................................7- 3 7.3.4.1 Door Open Jam ..................................7- 3 7.3.4.2 Wrapping Jam ..................................7- 3 7.3.4.3 Residual Jam at Startup ................................7- 4 7.4 Duplex Unit ..............................7- 5 7.4.1 Overview..................................
Page 10 Contents 9.3.6.1 Preparation for Removing the Printer Cover..........................9- 3 9.3.6.2 Removing the Printer Cover..............................9- 3 9.3.7 Operation Panel Unit..............................9- 4 9.3.7.1 Removing the Control Panel Unit............................. 9- 4 9.3.8 SCNT Board................................9- 4 9.3.8.1 Preparation for Removing the SCNT Board..........................9- 4 9.3.8.2 Removing the SCNT Board ..............................
Page 11 Contents Chapter 13 Error Code 13.1 Error Code ..............................13- 1 13.1.1 List of Error Codes............................... 13- 1 13.2 Fax Error Codes .............................13- 3 13.2.1 Outline ................................. 13- 3 13.2.1.1 Error Code Outline ................................13- 3 13.2.2 User Error Code..............................13- 3 13.2.2.1 User Error Code ...................................
Page 12 Contents 14.3.11.3 Detailed Discussions of Bit 1............................14- 12 14.3.11.4 Detailed Discussions of Bit 2............................14- 12 14.3.11.5 Detailed Discussions of Bit 3............................14- 12 14.3.11.6 Detailed Discussions of Bit 4............................14- 12 14.3.11.7 Detailed Discussions of Bit 5............................14- 12 14.3.12 SSSW-SW30..............................14- 12 14.3.12.1 List of Functions ................................
Page 13 Contents 14.9.1 Counters ................................14- 20 14.9.2 Clearing Counters.............................. 14- 20 14.10 Report Output (REPORT) ........................14- 21 14.10.1 Report Output ..............................14- 21 14.10.2 System Data List.............................. 14- 21 14.10.3 System Dump List............................14- 22 14.10.4 Counter List..............................14- 23 14.10.5 Spec List ................................
Page 14 Contents...
Page 15: Chapter 1 Introduction
Chapter 1 Introduction...
Page 17 Contents Contents 1.1 Product Specifications..............................1-1 1.1.1 Names of Parts ..................................... 1-1 1.1.1.1 External View........................................1-1 1.1.1.2 Section View (Host Machine) ..................................1-3 1.1.1.3 Section View (ADF) .......................................1-3 1.1.1.4 Control panel........................................1-4 1.1.2 Safety ......................................1-6 1.1.2.1 Safety of the Host Machine's Laser Mechanism .............................1-6 1.1.2.2 CDRH Regulations......................................1-6 1.1.2.3 Handling of the Laser Assembly..................................1-6 1.1.2.4 Safety of the Toner......................................1-6...
Page 19: Product Specifications
Chapter 1 1.1 Product Specifications 1.1.1 Names of Parts 1.1.1.1 External View 0016-1797 Front View (Body) [10] [11] [12] [13] [16] [15] [14] [17] F-1-1 [1] ADF (Automatic Document Feeder) [10] Platen glass [2] Slide Guides [11] Output tray extension [3] Document feeder tray [12] Paper stopper [4] Document delivery tray...
Page 20 Chapter 1 Rear View (Body) F-1-2 [1] USB port [4] Telephone line jack [2] Rear cover [5] External device jack [3] Power socket [6] Ethernet port...
Page 21: Section View (Host Machine)
Chapter 1 1.1.1.2 Section View (Host Machine) 0016-1798 [14] [13] [12] [11] [10] F-1-3 pressure roller pick-up roller copyboard glass (scanning glass) separation pad delivery roller [10] cartridge fixing film unit [11] duplexing feeding roller laser scanner unit [12] transfer charging roller primary charging roller [13] photosensitive drum...
Page 22: Control Panel
Chapter 1 1.1.1.4 Control panel 0016-1800 [1] [2] [5] [6] [7] [8] [10] [11] [12] [13] [25][24] [23] [22] [21] [20] [19] [18] [17] [16] [15] [14] F-1-5 T-1-1 [1] [System Monitor] key [14] [Stop/Reset] key [2] [View Settings] key [15] Error indicator [3] [COPY] key [16] Processing/Data indicator...
Page 23 Chapter 1 [3] [Coded Dial] key...
Page 24: Safety
These regulations apply to laser products produced on and after August 1st, 1976, and prohibit the sale of laser products without certification. The following labels certify compliance with the CDRH regulations, and must be attached to all laser products that are sold in the US. CANON 30-2, SHIMOMARUKO, 3-CHOME, OHTAKU, TOKYO, 146, JAPAN.
Page 25: Points No Note When Replacing / Disposing The Lithium Battery
Chapter 1 1.1.2.6 Points no Note when Replacing / Disposing the Lithium Battery 0016-1808 Replacing to wrong type of battery may cause explosion. Dispose used battery according to the instruction manual. 1.1.3 Product Specifications 1.1.3.1 Host Machine Specifications 0016-1780 Copyboard Fixed Body Desktop (ADF standard type)
Page 26: Adf Specifications
Chapter 1 Network UFRII LT, PCL5 / PCLXL SEND Operating environment 15 to 30 degrees C (temperature range) Operating environment 10 to 80 % (humidity range) Operating environment 0.16 to 1.01 hPa (0. 6 to 1 bar) (atmospheric pressure) Power supply rating 120V-127V (50/60Hz) Power consumption (maximum) Maximum consumption: less than 700W Power consumption...
Page 27: Function List
Chapter 1 Dual access Number of reservations: 70 max. Image data backup backup particulars: memory reception, memory transmission, broadcast image data backup IC: 128 MB (SDARAM) Backup battery: rechargeable capacity backup length: about 1 hour 1.1.4 Function List 1.1.4.1 Scanning Range 0016-1782 F-1-9 [1] leading edge of original...
Page 28: Recording Range (Copy)
Chapter 1 1.1.4.2 Recording Range (Copy) 0016-1784 F-1-10 [1] leading edge of document [6] trailing edge margin [2] left margin [7] non-scanning area [3] effective scanning width [8] scanning range [4] right margin [9] trailing edge of document [5] trailing edge margin T-1-4 item Letter...
Page 29: Recording Range (Printer)
Chapter 1 [5] leading edge margin T-1-5 item Letter Legal effective recording width 206 +1.0/-2.0 mm 212 +2.0/-2.0 mm 212 +2.0/-2.0 mm left margin 2.0 +2.0/-2.0 mm 2.0 +2.0/-2.0 mm 2.0 +2.0/-2.0 mm right margin 2.0 +2.0/-2.0 mm 2.0 +2.0/-2.0 mm 2.0 +2.0/-2.0 mm leading edge margin 2.0 +2.0/-2.0 mm...
Page 30: Send Specifications
Chapter 1 Communication mode FULL DUPLEX/half DUPLEX Supported protocol TCP/IP 1.1.4.7 SEND Specifications 0016-3028 Operation environment Microsoft Windows 98/98SE/Me, Windows 2000 Server, Windows 2000 Professional, Windows XP Professional, Windows XP Home Edition, Windows Server 2003, Windows Vista, MacOS X v10.2.8 or later, Red Hat Linux 7.2 Hardware environment - Windows or IBM compatible PC Protocol...
Page 31: Chapter 2 Basic Operation
Chapter 2 Basic Operation...
Page 33 Contents Contents 2.1 Construction ...................................2-1 2.1.1 Function Configuration ................................2-1 2.2 Basic Sequence ................................2-1 2.2.1 Basic Operation Sequence ................................2-1...
Page 35: Construction
Chapter 2 2.1 Construction 2.1.1 Function Configuration 0016-1809 The functions of this host machine are mainly composed of the 7 blocks: System Control System, Scanning Control System, Printer Control System, Laser Scanner System, Image Formation System, Fixing System, Pickup/Feeding System. Below is the block diagram.
Page 37: Chapter 3 Original Exposure System
Chapter 3 Original Exposure System...
Page 39 Contents Contents 3.1 Basic Constraction .................................3-1 3.1.1 Specifications / Control / Function List ............................3-1 3.1.2 Major Components..................................3-1 3.2 Various Control................................3-3 3.2.1 Dirt Sensor Control ..................................3-3 3.2.1.1 Outline..........................................3-3 3.3 Parts Replacement Procedure............................3-5 3.3.1 Scanner Unit....................................3-5 3.3.1.1 Preparation for Removing the Control Panel Assembly ..........................3-5 3.3.1.2 Removing the Control Panel Assembly ................................3-5 3.3.2 Book Motor ....................................
Page 41: Basic Constraction
Chapter 3 3.1 Basic Constraction 3.1.1 Specifications / Control / Function List 0016-1813 T-3-1 item function / method document exposure document scan Book mode: scan by the shift of the contact Book mode: scan by the shift of the contact sensor (CS) ADF: document stream reading by fixed contact sensor (CS) scanning resolution 600 dpi (horizontal scanner) X 600 dpi (vertical scanner)
Page 42 Chapter 3 drive belt drive pulley Book motor (M2) drive pulley contact sensor F-3-1...
Page 43: Various Control
Chapter 3 3.2 Various Control 3.2.1 Dirt Sensor Control 3.2.1.1 Outline 0016-1824 The machine changes the original read position or corrects the read image depending on the presence/absence of dust on the stream reading glass or ADF platen roller, thus preventing dust from showing up in the image. This control is performed only when the ADF is used and it is closed. [Control Timing] - At job end Main power...
Page 44 Chapter 3 T-3-2 Position Description Reference position for scanning Approx. 0.5mm from the reference point Approx. 1.0mm from the reference point...
Page 45: Parts Replacement Procedure
Chapter 3 3.3.2.2 Removing the Flat Bed Motor 0016-5033 3.3 Parts Replacement Procedure 1) Open the copyboard glass cover [1], and remove it upward. Pull out the hinge [2] on the left side while keeping it tilted toward the back. 3.3.1 Scanner Unit 3.3.1.1 Preparation for Removing the Control Panel Place the detached copyboard glass cover on cloth etc.
Page 46: Contact Sensor
Chapter 3 Be sure not to get the bottom surface of the scanner glass soiled. F-3-10 7) Unhook the 1 claw [1], and remove the gear [3] with the belt [2]. F-3-14 4) Remove the 2 spacers [1]. 5) Remove the contact sensor unit [2] upward. F-3-11 8) Remove the 3 screws [1] to remove the shaft retainer [2], the grounding plate [3] and the motor unit [4].
Page 47 Chapter 3 7) Turn the contact sensor [1] in the direction shown by the arrow, remove the 2 shafts [2], and then remove the contact sensor [1]. F-3-18...
Page 49: Chapter 4 Original Feeding System
Chapter 4 Original Feeding System...
Page 51 Contents Contents 4.1 Basic Operation................................4-1 4.1.1 Basic Operation.................................... 4-1 4.1.2 Original Detection..................................4-2 4.2 Detection Jams ................................4-2 4.2.1 Jam Detection....................................4-2 4.3 ADF....................................4-3 4.3.1 Pick-up Roller ....................................4-3 4.3.1.1 Removing the ADF Pickup Roller ..................................4-3 4.3.2 ADF Motor....................................4-3 4.3.2.1 Preparation for Removing the ADF Motor ..............................4-3 4.3.2.2 Removing the ADF Motor ....................................4-3 4.3.3 Separation Pad .....................................
Page 53: Basic Operation
Chapter 4 4.1 Basic Operation 4.1.1 Basic Operation 0016-1866 The Auto Document Feeder (ADF) mounted onto this host machine is dedicated to stream-reading. 1 motor (DF motor: M3) is engaged in pickup/feeding/delivery. At the start of copy/fax/scan, the DF motor (M3) is driven by the drive command from the SCNT to pickup/feed the originals set face up on the original tray one by one in order from the top.
Page 54: Original Detection
Chapter 4 4.1.2 Original Detection 0016-1867 There are two types of original detection in this equipment. PS106 PS105 J707 1 2 3 4 5 6 SCNT F-4-3 1. Original Presence / Absence Detection Detected by DS (Document Sensor: PS106) Setting the original onto the original tray pushes up the actuator, activating (light shielded =>light transmitted) the DS (PS106), and resulting in detection of the presence of original.
Page 55: Adf
Chapter 4 4) Remove the 2 bushings [1]. 5) Remove the 1 E ring [2] to remove the ADF pick-up roller shaft [3]. 4.3 ADF 4.3.1 Pick-up Roller 4.3.1.1 Removing the ADF Pickup Roller 0016-5051 1) Remove the shaft [1] with driver etc., and detach the ADF cover [2] in the direction of the arrow.
Page 56: Separation Pad
Chapter 4 F-4-15 4.3.3 Separation Pad F-4-11 4.3.3.1 Removing the Separation Pad 3) Free the cable [1] form the cable guide [2]. 0016-5054 1) Open the ADF cover [1]. F-4-16 2) Remove the separation pad [1] in the direction of the arrow. F-4-12 4) Open the ADF cover [1], and unhook the 2 claws [2].
Page 57: Chapter 5 Laser Exposure
Chapter 5 Laser Exposure...
Page 59 Contents Contents 5.1 Overview/Configuration ..............................5-1 5.1.1 Overview...................................... 5-1 5.2 Controlling the Laser Activation Timing........................5-2 5.2.1 Laser ON / OFF Control ................................5-2 5.3 Controlling the Intensity of Laser Light ........................5-2 5.3.1 Auto Photoelectric Current Control (APC)..........................5-2 5.4 Controlling the Laser Scanner Motor..........................5-3 5.4.1 Overview......................................
Page 61: Overview/Configuration
Chapter 5 5.1 Overview/Configuration 5.1.1 Overview 0016-1833 F-5-1 [1] Laser driver PCB [5] Scanner motor [2] BD sensor [6] Four-surface mirror [3] Photosensitive drum [7] Cylindrical lens [4] Condensing lens The laser scanner assembly is composed of the laser driver and the scanner motor etc., and controlled by the signal input from the DCNT board. The laser driver emits laser diode according to the laser control signal and the video signal from the DCNT board.
Page 62: Image Formation
Chapter 5 5.2 Controlling the Laser Activation Timing 5.2.1 Laser ON / OFF Control 0016-1834 This is the control where the laser driver turns on / off the laser diode (LD) based on the laser control signal sent from the DCNT board. The following is the circuit diagram for laser control.
Page 63: Controlling The Laser Scanner Motor
Chapter 5 5.4 Controlling the Laser Scanner Motor 5.4.1 Overview 0016-1836 This is the control to rotate the scanner motor at constant speed. The scanner motor is the 3-phase DC brush-less motor with hall element included, and is combined with the drive circuit. The following chart shows the control circuit for the scanner motor.
Page 64: Parts Replacement Procedure
Chapter 5 5.5 Parts Replacement Procedure 5.5.1 Laser/Scanner Unit 5.5.1.1 Preparation for Removing the Laser Scanner Unit 0016-5036 1) Remove the front cover. 2) Remove the right cover. 3) Remove the left cover. 4) Remove the DCNT board. 5.5.1.2 Removing the Laser Scanner Unit 0016-5037 1) Remove the shutter arm [1].
Page 65: Chapter 6 Image Formation
Chapter 6 Image Formation...
Page 67 Contents Contents 6.1 Overview/Configuration ..............................6-1 6.1.1 Configuration ....................................6-1 6.1.2 Print Process....................................6-1 6.2 Driving and Controlling the High-Voltage System .......................6-3 6.2.1 Generation of Transfer Charging Bias ............................6-3 6.3 Toner Cartridge ................................6-3 6.3.1 Toner Level Detection ................................. 6-3 6.4 Parts Replacement Procedure............................6-4 6.4.1 Transfer Charging Roller ................................
Page 69: Overview/Configuration
Chapter 6 6.1 Overview/Configuration 6.1.1 Configuration 0016-1839 The image forming system is the core part of this machine, and is composed of the cartridge, the transfer charging roller, the fixing assembly, etc. When receiving the print command from the SCNT board, the DCNT board activates the main motor to rotate the photosensitive drum, the developing cylinder, the primary charging roller, the transfer charging roller and the pressure roller.
Page 70 Chapter 6 The toner image on the surface of the photosensitive drum is transferred to papers. Step 4: Transfer (Transfers the toner on the photosensitive drum to a paper) Step 5: Separation (Separates the paper from the photosensitive drum) 4) Fixing block The toner image is fixed on the paper.
Page 71: Driving And Controlling The High-Voltage System
Chapter 6 6.2 Driving and Controlling the High-Voltage System 6.2.1 Generation of Transfer Charging Bias 0016-1841 The transfer charging bias (TRS) is output to transfer the toner on the photosensitive drum to papers. There are transfer charging DC positive bias and transfer charging DC negative bias generated at the transfer charging bias generation circuit in the high-voltage power supply circuit.
Page 72: Parts Replacement Procedure
Chapter 6 6.4 Parts Replacement Procedure 6.4.1 Transfer Charging Roller 6.4.1.1 Removing the Transfer Charging Roller 0016-5039 1) Open the control panel assembly [1]. 2) Open the printer cover [2]. F-6-6 F-6-3 3) Unhook the 2 claws [1] and the claw [2] to remove the transfer charging roller [3] with the transfer guide [4] in the direction of the arrow.
Page 73: Chapter 7 Pickup And Feed System
Chapter 7 Pickup and Feed System...
Page 75 Contents Contents 7.1 Overview/Configuration ..............................7-1 7.1.1 Overview...................................... 7-1 7.2 Other Control .................................7-1 7.2.1 Overview...................................... 7-1 7.3 Detection Jams ................................7-3 7.3.1 Jam Detection Outline.................................. 7-3 7.3.1.1 Overview .........................................7-3 7.3.2 Delay Jams ....................................7-3 7.3.2.1 Pickup Delay Jam ......................................7-3 7.3.2.2 Delivery Delay Jam......................................7-3 7.3.3 Stationary Jams ....................................
Page 77: Overview/Configuration
Chapter 7 7.1 Overview/Configuration 7.1.1 Overview 0016-1844 The pickup/feeding system is the part to pickup and feed a paper, and it is composed of the main motor, solenoid, and various motors. In this machine, a paper is picked up from either the pickup tray or the manual feed tray, and it is delivered from the delivery tray. A paper set in either the pickup tray or the manual feed tray is picked up with the same pickup roller.
Page 78 Chapter 7 The pickup/feed operation of the machine is explained below. 1) Right after the DCONT board receives a print command from the SCNT board, it rotates the main motor (M1). By doing so, other rollers, except the pickup roller, start to rotate. 2) When it becomes initial rotation ready state, the pickup solenoid (SL1) turns ON for about 0.2 sec.
Page 79: Detection Jams
Chapter 7 7.3 Detection Jams 7.3.1 Jam Detection Outline 7.3.1.1 Overview 0016-1846 The machine has the following paper sensors to detect the presence/absence of paper at the time of startup, opening the door, or feeding a paper, as well as to detect whether a paper is fed normally.
Page 80: Residual Jam At Startup
Chapter 7 7.3.4.3 Residual Jam at Startup 0016-1855 If either the leading edge sensor (PS801) or the paper width sensor (PS802) detects a paper at the start of initial rotation, CPU judges as the residual jam at startup. When there is paper in inside the machine, the leading edge sensor flag is pushed up with paper, and paper having is judged. Paper PS802 PS801...
Page 81: Duplex Unit
Chapter 7 7.4 Duplex Unit 7.4.1 Overview 0016-1856 The duplexing pick up operation of this machine is performed by the drive of the main motor (M1) under CPU control of the DCNT board. After the machine completes the 1st print and the paper's trailing edge passes over the delivery sensor (PS803), the duplexing drive solenoid (SL2) is turned on and the drive of the main motor (M1) is transmitted to the delivery roller and the duplexing feed roller.
Page 82: Parts Replacement Procedure
Chapter 7 7.5 Parts Replacement Procedure Do not touch the roller with bare hands. 7.5.1 Main Motor 7.5.1.1 Preparation for Removing Main Motor 0016-5040 1) Remove the front cover. 2) Remove the right cover. 3) Remove the left cover. 4) Remove the DCNT board. 5) Remove the laser scanner unit.
Page 83: Chapter 8 Fixing System
Chapter 8 Fixing System...
Page 85 Contents Contents 8.1 Overview/Configuration ..............................8-1 8.1.1 Specification/Control/Function List ............................8-1 8.1.2 Overview...................................... 8-1 8.2 Various Control Mechanisms............................8-3 8.2.1 Controlling the Temperature of the Fixing Unit .......................... 8-3 8.2.1.1 Fixing Temperature Control ...................................8-3 8.3 Protection Function ................................8-4 8.3.1 Protection Function ..................................8-4 8.4 Parts Replacement Procedure............................8-6 8.4.1 Fixing Unit ....................................
Page 87: Overview/Configuration
Chapter 8 8.1 Overview/Configuration 8.1.1 Specification/Control/Function List 0016-1857 T-8-1 Item Function/Method Fixing method On-demand fixing Fixing heater Flat heater Fixing temperature detection Thermistor (TH1): temperature control, detection of abnormality Temperature fuse (TP1): detection of abnormality Fixing temperature control Temperature control at startup Temperature control at normal times Temperature control at sheet-to-sheet interval Protection function...
Page 88 Chapter 8 F-8-2 [1] Pressure roller [2] Fixing film H1: Fixing heater TH1: Thermistor TP1: Temperature fuse...
Page 89: Various Control Mechanisms
Chapter 8 8.2 Various Control Mechanisms 8.2.1 Controlling the Temperature of the Fixing Unit 8.2.1.1 Fixing Temperature Control 0016-1859 With this control, the surface temperature of the fixing heater is detected, and also the drive signal of the fixing heater is controlled to maintain the target temperature of the fixing heater.
Page 90: Protection Function
Chapter 8 In order to prevent temperature increase at the end of the fixing film that occurs when putting papers on one side and passing them through the machine while the paper width guide is fully opened, the machine has the delivery paper width sensor. The relationship between paper size when putting papers on one side and passing them through the machine and the fixing mode is shown below.
Page 91 Chapter 8 T-8-4 Failure of fixing assembly Thermistor temperature Heater temperature detection time From the start of temperature control until 1.47 sec Less than 55 deg C Normal times 230 deg C or above 0.15 sec in a row During normal temperature control Less than 100 deg C 1.2 sec in a row During temperature control at sheet-to-sheet interval, during cleaning mode...
Page 92: Parts Replacement Procedure
Chapter 8 8.4 Parts Replacement Procedure 8.4.1 Fixing Unit 8.4.1.1 Preparation for Removing Fixing Assembly 0016-5046 1) Remove the front cover. 2) Remove the right cover. 3) Remove the left cover. 4) Remove the rear cover. 5) Remove the control panel. 6) Remove the printer cover.
Page 93 Chapter 8 F-8-11 3) Recline the 2 pressure release levers [1], and remove the 2 springs [2]. 4) Remove the fixing film unit [4]. - 2 pressure release levers [1] - 2 pressure plates [3] Do NOT touch the roller with bare hands. F-8-12...
Page 95: Chapter 9 External And Controls
Chapter 9 External and Controls...
Page 97 Contents Contents 9.1 Control Panel..................................9-1 9.1.1 Outline......................................9-1 9.2 Power Supply .................................9-1 9.2.1 Protection Function ..................................9-1 9.2.1.1 Protecting Function ......................................9-1 9.3 Parts Replacement Procedure............................9-2 9.3.1 Front Cover ....................................9-2 9.3.1.1 Removing the Front Cover....................................9-2 9.3.2 Rear Cover ....................................9-2 9.3.2.1 Preparation for Removing the Rear Cover..............................9-2 9.3.2.2 Removing the Rear Cover ....................................9-2 9.3.3 Right Cover ....................................
Page 99: Control Panel
Chapter 9 9.1 Control Panel 9.1.1 Outline 0016-1862 The machine's control panel consists of the following PCBs, and is controlled by the SCNT board. SCNT board Operation panel Key SW ASIC F-9-1 9.2 Power Supply 9.2.1 Protection Function 9.2.1.1 Protecting Function 0016-1863 In the case of troubles with power supply PCB such as short circuit to loads, and resulted in occurring overcurrent or over overvoltage, there is a protecting function for overcurrent/overvoltage to automatically shut the output voltage to avoid fault of power supply PCB.
Page 100: Parts Replacement Procedure
Chapter 9 9.3 Parts Replacement Procedure 9.3.1 Front Cover 9.3.1.1 Removing the Front Cover 0016-4962 1) Remove the paper cassette [1]. F-9-5 9.3.3 Right Cover 9.3.3.1 Removing the Right Cover F-9-2 0016-4966 1) Remove the front cover. 2) Open the control panel [1]. 2) Unhook the 6 claws [1], and detach the right cover [2].
Page 101: Upper Cover
Chapter 9 F-9-8 5) Remove the 4 screws [2] to remove the damper [1]. F-9-12 9.3.5 Upper Cover 9.3.5.1 Preparation for Removing the Upper Cover 0016-4980 1) Remove the front cover. 2) Remove the right cover. 3) Remove the left cover. 4) Remove the rear cover.
Page 102: Operation Panel Unit
Chapter 9 Make sure to attach the link stopper [2] after attaching the right cover. If at- taching the link stopper while attaching the printer cover, it may drop inside the machine. 4) With the printer cover [1] opened, detach it upward. F-9-18 F-9-15 6) Remove the Analog processor PCB.
Page 103 Chapter 9 5) Disconnect the 6 connectors [1], and free the cable [2] through the hole of PCB. 6) Free the cable [3] from the cable clamp [4]. F-9-20 2) Unhook the claw [1], and remove the cable guide [2] in the direction of the arrow.
Page 104: Analog Processor Pcb
Chapter 9 9.3.10 Analog Processor PCB 9.3.11.2 Removing the NCU Board 0016-5016 1) Remove the NCU board [1]. 9.3.10.1 Preparation for Removing the Analog processor - 1 connector [2] - 3 screws [3] 0016-5021 1) Remove the front cover. 2) Remove the right cover. 3) Remove the left cover.
Page 105: Motor Driver Pcb
Chapter 9 F-9-33 2) Disconnect the 3 connectors [1] located at the backside, and free the cable F-9-36 [2] from the cable guide. 9.3.14.2 Removing the Motor driver PCB 0016-5031 1) Remove the Motor driver PCB [1]. - 11 connectors [2] - 3 screws [3] F-9-34 Points to Note When Attaching...
Page 107: Chapter 10 Maintenance And Inspection
Chapter 10 Maintenance and Inspection...
Page 109 Contents Contents 10.1 Periodically Replaced Parts ............................10-1 10.1.1 Periodically Replaced Parts ..............................10-1 10.2 Consumables ................................10-1 10.2.1 Consumable....................................10-1 10.3 Periodical Service ..............................10-1 10.3.1 Periodically Service Items ............................... 10-1 10.4 Cleaning ..................................10-1 10.4.1 Cleaning Items ..................................10-1 10.4.2 Cleaning Method (External Covers) ............................10-1 10.4.3 Cleaning Method (Reader Unit)...............................
Page 111: Periodically Replaced Parts
Chapter 10 10.1 Periodically Replaced Parts 10.1.1 Periodically Replaced Parts 0016-1869 There are no periodically replaced parts with this machine. 10.2 Consumables 10.2.1 Consumable 0016-1871 T-10-1 Consumable Charge Standard of exchange User Toner cartridge 104 The toner disappears and. Field engineer 10.3 Periodical Service 10.3.1 Periodically Service Items 0016-1875...
Page 112: Cleaning Method (Reader Unit)
Chapter 10 10.4.3 Cleaning Method (Reader Unit) 0016-1878 F-10-1 [1] Document pickup roller Open the ADF and wipe off the smudge with the soft dry cloth. [2] Document feed roller Open the ADF and wipe off the smudge with the soft dry cloth. [3] Scraper Open the ADF and wipe off the smudge with the soft dry cloth.
Page 113: Chapter 11 Measurement And Adjustments
Chapter 11 Measurement and Adjustments...
Page 115 Contents Contents 11.1 Scanning System ................................11-1 11.1.1 Procedure after Replacing the CIS............................11-1 11.1.2 Procedure after Replacing the Copyboard Glass ........................11-1 11.2 Electrical Adjustments ...............................11-1 11.2.1 Procedure after Replacing the SCNT board..........................11-1...
Page 117: Scanning System
Chapter 11 11.1 Scanning System 11.1.1 Procedure after Replacing the CIS 0016-1880 After replacing the contact image sensor (CIS), go through the following steps to perform inter-channel output correction: 1) Enter the service mode. Sequentially press the Additional functions key, 2 key, 8 key, and Additional functions key on the operation panel.
Page 118 Chapter 11 11-2...
Page 119: Chapter 12 Correcting Faulty Images
Chapter 12 Correcting Faulty Images...
Page 121 Contents Contents 12.1 Outline of Electrical Components..........................12-1 12.1.1 Clutch/Solenoid/Motor/Fan ..............................12-1 12.1.1.1 List of Solenoids/Motors.....................................12-1 12.1.2 Sensor....................................... 12-2 12.1.2.1 List of Sensors......................................12-2 12.1.3 PCBs ......................................12-3 12.1.3.1 List of PCBs ........................................12-3...
Page 123: Outline Of Electrical Components
Chapter 12 12.1 Outline of Electrical Components 12.1.1 Clutch/Solenoid/Motor/Fan 12.1.1.1 List of Solenoids/Motors 0016-2071 F-12-1 Symbol Name Main motor Book motor DF motor pickup solenoid duplexing drive solenoid Heat discharge fan 12-1...
Page 124: Sensor
Chapter 12 12.1.2 Sensor 12.1.2.1 List of Sensors 0016-1914 PS804 PS105 PS106 PS803 PS801/PS802 PS805 TS101 F-12-2 Symbol Name PS105 DES sensor PS106 DS sensor PS801/PS802 leading edge/paper width sensor PS803 delivery sensor PS804 delivery paper width sensor PS805 Multi-purpose pickup sensor CS home position sensor TS101 Toner level sensor...
Page 125: Pcbs
Chapter 12 12.1.3 PCBs 12.1.3.1 List of PCBs 0016-2070 SW301 F-12-3 Symbol Name NCU board Analog processor PCB SCNT board Motor driver PCB DCNT board Power supply PCB High voltage PCB SW301 Door switch 12-3...
Page 127: Error Code
Chapter 13 Error Code...
Page 129 Contents Contents 13.1 Error Code..................................13-1 13.1.1 List of Error Codes................................... 13-1 13.2 Fax Error Codes .................................13-3 13.2.1 Outline...................................... 13-3 13.2.1.1 Error Code Outline ......................................13-3 13.2.2 User Error Code ..................................13-3 13.2.2.1 User Error Code ......................................13-3 13.2.3 Service Error Code................................... 13-3 13.2.3.1 Service Error Code ......................................13-3...
Page 131: List Of Error Codes
Chapter 13 13.1 Error Code 13.1.1 List of Error Codes 0016-2151 T-13-1 Display Detail Code Main Cause/Symptom Countermeasure Code E000 0000 Startup error The temperature detected by the main or sub thermistor does - Check the fixing film connector. not rise to the specified value during startup control. - Replace the fixing film unit.
Page 132 Chapter 13 Display Detail Code Main Cause/Symptom Countermeasure Code E736 0000 CCU communication error The installed modem PCB is incompatible. - Check the connectors of the image processor PCB and modem. - Replace the modem PCB. - Replace the image processor PCB. E739 0000 Erroneous communication between controller and network board...
Page 133: Fax Error Codes
Chapter 13 13.2 Fax Error Codes 13.2.1 Outline 13.2.1.1 Error Code Outline 0016-2152 An error code is used to indicate a fault in a machine, and is indicated in the machine's LCD or reports, showing the nature (symptoms) of the fault. Using the error code, the user or the service man can readily find out how to correct the fault by simply referring to the User's Manual or service manual.
Page 134 Chapter 13 Tx/Rx Description ##0288 [Tx] after transmission of EOP, a signal other than PIN, PIP, MCF, RTP, or RTN has been received. ##0289 [Tx] after transmission of EOM, a signal other than PIN, PIP, MCF, RTP, or RTN has been received. ##0290 [Tx] after transmission of MPS, a signal other than PIN, PIP, MCF, RTP, or RTN has been received.
Page 135: Chapter 14 Service Mode
Chapter 14 Service Mode...
Page 137 Contents Contents 14.1 Outline..................................14-1 14.1.1 Outline of Service Mode ................................14-1 14.1.2 Using the Mode..................................14-2 14.2 Default Settings................................14-2 14.2.1 Service Mode Menus ................................14-2 14.3 Service Soft Switch Settings (SSSW) ........................14-6 14.3.1 Outline...................................... 14-6 14.3.1.1 Bit Switch Composition ....................................14-6 14.3.2 SSSW-SW01:...................................
Page 138 Contents 14.4 Menu Switch Settings (MENU) ..........................14-12 14.4.1 Menu Switch Composition ..............................14-12 14.4.2 <No.005 NL equalizer> ................................. 14-13 14.4.3 <No.006 telephone line monitor>............................14-13 14.4.4 <No.007 ATT transmission level> ............................14-13 14.4.5 <No.008 V.34 modulation speed upper limit> ........................14-13 14.4.6 <No.009 V.34 data speed upper limit>..........................
Page 139 Contents 14.10.4 Counter List ..................................14-23 14.10.5 Spec List....................................14-24 14.11 Data Initialization Mode (CLEAR)........................14-25 14.11.1 Clear ..................................... 14-25 14.12 ROM Management (ROM) ............................14-25 14.12.1 ROM Display ..................................14-25 14.13 Test Mode (TEST) ..............................14-25 14.13.1 Overview....................................14-25 14.13.1.1 Outline........................................14-25 14.13.1.2 Test Mode Menu List .....................................14-26 14.13.2 DRAM Test..................................
Page 141: Outline
Chapter 14 14.1 Outline 14.1.1 Outline of Service Mode 0016-1999 Service Mode contains the following service data items. Each service data can be viewed or modified using the menu items displayed on the screen. #SSSW Use it to register/set basic fax functions (e.g., error control, echo remedy, communication error correction). Use it to make settings related counter functions.
Page 142: Using The Mode
Chapter 14 14.1.2 Using the Mode 0016-1997 <Operation at the of Bit SW> <Operation at the time of Parameter> 1) Selecting Service Mode 1) Selecting Service Mode Press the Additional functions Press the Additional functions key, 2key, 8key, Additional functions key, 2key, 8key, Additional functions key sequentially key sequentially...
Page 143 Chapter 14 #MENU Initial setting Range of Function setting 01: - 04: not used ON/OFF NL equalizer setting 0: DIAL line monitor setting 1: SERVICEMAN [1] 2: SERVICEMAN [2] 3: OFF 0-15 transmission level setting 0: 3429 V.34 baud rate 1: 3200 2: 3000 3: 2800...
Page 144 Chapter 14 #NUMERIC Initial setting Range of setting Function 028: - 055: not used 056: (0-999) count type select 1 057: (0-999) count type select 2 058: (0-999) count type select 3 059: (0-999) count type select 4 060: (0-999) count type select 5 061: (0-999)
Page 145 Chapter 14 #PRINT Initial setting Range setting Explanation #PRINT 01: - 33: Not used NUMERIC 0 to 200, one unit = 0.1 Left-end registration adjustment (multi-purpose tray) 0 to 200, one unit = 0.1 Left-end registration adjustment (cassette) 36 - 38: Not used 0 to 200, one unit = 0.1 Left-end registration adjustment (duplex unit)
Page 146: Service Soft Switch Settings (Sssw)
Chapter 14 #DOWNLOAD Download mode #CLEAR Item Level2 Function TEL & USER DATA Use it to clear all areas under user registration/setting. SERVICE DATA Use it to clear the counters (numerator), date, and start data form the system dump list. COUNTER Use it to clear the maintenance counter data and each mode counter data.
Page 147: Sssw-Sw01
Chapter 14 #SSSW F-14-2 Do not change service data identified as "not used"; they are set as initial settings. 14.3.2 SSSW-SW01: 14.3.2.1 List of Functions 0016-2002 T-14-1 Function service error code output not output not used not used not used not used not used not used...
Page 148: Detailed Discussions Of Bit 3
Chapter 14 14.3.4 SSSW-SW04 14.3.4.1 List of Functions 0016-2006 T-14-3 Function not used not used the number of final flag sequences of protocol signals Reception mode after CFR signal transmission high speed high speed/low speed the length of the period of ignoring low speed signals after 1500 ms 700 ms CFR output...
Page 149 Chapter 14 Function not used not used 14.3.5.2 Detailed Discussions of Bit 1 0016-2014 Use it to enable/disable millimeter/inch conversion in sub scanning direction for images read in text mode. Scanning direction in conversion follows the Bit 2 setting of SW14. 14.3.5.3 Detailed Discussions of Bit 2 0016-2015 Use it to enable/disable millimeter/inch conversion in sub scanning direction for images read in text/photo mode while bit 1 is set to '1'.
Page 150 Chapter 14 Time-Out Length for Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Reception 32 min 64 min 14.3.7 SSSW-SW13 14.3.7.1 List of Functions 0016-2017 T-14-9 Function not used not used Convert "inch" into "mm" when transmitting the received convert do not convert image data not used...
Page 151 Chapter 14 Function Waiting time for carrier disconnection between the DCS 600 msec 300 msec* signal and the TCF signal Not used Not used Not used Not used Not used Not used 14.3.9.2 Detailed Discussions of Bit 0 0016-2023 It is possible to select whether or not to detect carrieir disconnection between the DCS signal and the TCF signal during reception. If the receiving machine returns an FTT signal while the other machine (PC-FAX) is transmitting a TCF siganl and a reception error occurs, set this bit to "1".
Page 152: Sssw-Sw30
Chapter 14 Function V.34 transmission fallback Prohibited Not prohibited not used not used 14.3.11.2 Detailed Discussions of Bit 0 0016-2029 Select whether to use the V.8 protocol when calling. If NO is selected, the V.8 protocol is inhibited at calling and the V.21 protocol is used. 14.3.11.3 Detailed Discussions of Bit 1 0016-2030 Select whether to use the V.8 protocol when called.
Page 153: No.005 Nl Equalizer
Chapter 14 14.4.2 <No.005 NL equalizer> 0016-2043 Use it to enable-disable the NL equalizer. If errors occur often during communication because of the condition of the line, enable (ON) the NL equalizer. Any of the following error codes may be indicated at time of transmission because of the line condition: ##100, ##101, ##102, ##104, ##201, ##281, ##282, ##283, ##750, ##755, ##765, ##774, ##779, ##784, ##789 Any of the following error codes may be indicated at time of transmission because of the line condition: ##103, ##107, ##114, ##201, ##790, ##793...
Page 154: 005: Ncc Pause Length (Pre-Id Code)
Chapter 14 Item Range of settings Display the type of soft counter 4 0 to 999 Display the type of soft counter 5 0 to 999 Display the type of soft counter 6 0 to 999 14.5.2 <002: RTN transmission condition (1)><003: RTN transmission condition (2)><004: RTN transmission condition (3)> 0016-2050 Use it to set RTN signal transmission conditions.
Page 155 Chapter 14 No.59: Use it to change the type of soft counter 4* of the control panel to suit the needs of the user. No.60: Use it to change the type of soft counter 5* of the control panel to suit the needs of the user. No.61: Use it to change the type of soft counter 6* of the control panel to suit the needs of the user.
Page 156 Chapter 14 Seri Counter type Print system Bk 1-sided L Bk 1-sided S Bk 2-sided L Bk 2-sided S Local Repo Local Repo Local Repo Local Repo copy print print copy print print copy print print copy print print nter print print print...
Page 157: Scanner Function Settings (Scanner)
Chapter 14 Seri Counter type Print system Bk 1-sided L Bk 1-sided S Bk 2-sided L Bk 2-sided S Local Repo Local Repo Local Repo Local Repo copy print print copy print print copy print print copy print print nter print print print...
Page 158: 031Vertical Scan Start Position Adjustment
Chapter 14 Function Default Setting range Unit 026: Distance from the standby position of CIS to the 6-48 one unit=0.1mm shading start point. 027: - 030: Not used 031: Vertical scan start position adjustment 0-70 one unit=0.1mm 032: Not used 033: Vertical scan magnification correction 0-64...
Page 159: Printer Function Settings (Printer)
Chapter 14 14.7 Printer Function Settings (PRINTER) 14.7.1 Service Soft Switch Settings (SSSW) 14.7.1.1 SSSW-SW15 14.7.1.1.1 List of Function 0016-2090 T-14-17 Function Not used Not used Not used IFAX Permission of split recording of text data Enable Disable Not used Not used Not used Not used...
Page 160: Counter Indication (Counter)
Chapter 14 Function Not used Not used Not used Not used Imports and exports user information via USB. Enable Disable Not used Bit 6 details Select whether to enable the host machine to work as a USB storage device or not. If the host machine is plugged into a PC with this setting enabled, it allows user registration data (user data and telephone registration data) to be imported and exported to and from the PC, except for the data embedded in the department man- agement information and user management IDs in the system management information.
Page 161: Report Output (Report)
Chapter 14 14.10 Report Output (REPORT) 14.10.1 Report Output 0016-2111 The table below lists the kinds of reports that are supported. Item Explanation SERVICE DATA LIST Service mode service soft switch output (SSSW, MENU, NUMERIC Param., SPECIAL, NCU, SCAN, PRINT, SYSTEM, ROM, start date) SYSTEM DATA LIST Service mode service soft switch output (SSSW, MENU, NUMERIC Param., SPECIAL, NCU, SCAN, PRINT, SYSTEM, ROM,...
Page 162: System Dump List
Chapter 14 14.10.3 System Dump List 0016-2113 - System Dump List Use it to check the history of communications, both successful and error. F-14-4 *1: TX, number of total pages transmission. *2: Total number of pages transmitted/received according to original size. *3: RX, number of total pages reception.
Page 163: Counter List
Chapter 14 F-14-5 *1: service error code. *2: START TIME, date and time (in 24-hr notation). *3: OTHER PARTY, telephone number sent by the other party. *4: MAKER CODE, manufacturer code. *5: MACHINE CODE, model code. *6: bit 1 through bit 96 of DIS, DCS, or DTC that has been received. *7: bit 1 through bit 96 of DIS, DCS, or DTC that has been transmitted.
Page 164: Spec List
Chapter 14 14.10.5 Spec List 0016-2115 07/12/2005 13:07 FAX ***************************** *** SPEC REPORT ***************************** TYPE _ _ _ _ _ U. S. A LBP SPEED _ _ _ _ _ 22cpm TOTAL MEMORY _ _ _ _ _ 128MB MAIN _ _ _ _ _ WLaa-03-13 OPTION...
Page 165: Data Initialization Mode (Clear)
Chapter 14 14.11 Data Initialization Mode (CLEAR) 14.11.1 Clear 0016-2117 Group Item Explanation TEL & USER DATA Clears all user-registered and -set areas of telephone registration data and user data. (Telephone registration refers to the registration of codes on one-touch dialing, abbreviated dialing, and group dialing.) SERVICE DATA Clears the system dump list, except for counters and clear dates.
Page 166: Test Mode Menu List
Chapter 14 1. D-RAM test ((1) D-RAM) Checks to see if data can be correctly written to and read from D-RAM. 2. Scan test ((2) SCAN TEST) Used to adjust contact sensor output and the position at which a document fed from the ADF is scanned. 3.
Page 167: Dram Test
Chapter 14 Numerals enclosed in parentheses denote a numeric keypad key to be pressed each. Group Subgroup Item 1 Item 2 Item 3 Explanation (1) RELAY TEST [1] - [2] (1) RELAY TEST 1 NCU relay (and switch) ON/OFF test (2) RELAY TEST 2 230 V common NCU test (2) FREQ TEST [0] - [6]...
Page 168: Scan Test
Chapter 14 error appearing on the touch panel (LCD). Numeric keypad key 2 Checks to see if data can be correctly read from all areas of D-RAM (SDRAM). If an error occurs making this check, the test is aborted, with an error appearing on the touch panel (LCD).
Page 169 Chapter 14 of the signals from the speaker with the sounds from a normal modem. End this test by pressing the Stop key. Keypad Type Description Relay test Use it to turn on/off a selected relay to execute a switch-over test Frequency test The modem sends tonal signals from the modular jack and the speaker.
Page 170 Chapter 14 G3 Signal Transmission Test A press on '4' on the keypad from the MODEM test menu selects the G3 signal transmission test. In this test, the following G3 signals from the modem are trans- mitted using the telephone line terminal and the speaker. To select a different transmission speed, use the keypad. Keypad Transmission speed 300bps...
Page 171: Faculty Test
Chapter 14 Left/right arrow key Transmission speed < 12000bps 14400bps 16800bps 19200bps 21600bps > 24000bps 26400bps 28800bps 31200bps 33600bps 14.13.6 Faculty Test 14.13.6.1 FUNCTION TEST <(6) FUNCTION TEST> 0016-2132 Function test ((6) FUNCTION TEST) Press the numeric keypad key 6 on the test mode menu to select the function test. Press numeric keypad keys 1 and 3 to 9 during the function test to enter the menus listed below.
Page 172 Chapter 14 6-3:SENOR [1] - [8] Press '1' on the numeric pad. CRG ON FCV ON ALS [of of of] CRG:Toner cartridge sensor: on/of FCV:Toner cartridge cover: on/of ALS:Multi-purpass paper sensor/Paper width sensor /Delivery sensor: on/of Press '2' on the numeric pad. PW of PW2 of PW:Paper leading edge sensor: on/of...
Page 173 Chapter 14 Character Operation key Character Operation key OK key 2-Sided key Additional Functions key Enagy Saver key Status Monitor key Clear key Collate/2 on 1 key COPY key Image Quality key SCAN key ID key Enlarge/Reduce key Operation key test (2) correspondence diagram T-14-25 Character Operation key...
Page 174: Cleaning Mode
Chapter 14 Test menu 2 Press numeric keypad key 2 on the LINE DETECT menu to select test menu 2. When the CNG signal is detected on the telephone line connection terminal, the LCD display changes from OFF to ON, indicating the received frequency. The LCD displays the status of CML, CNG and FED detection, from left to right, with ON/OFF indications.
Page 175: Service Tools
Chapter 15 Service Tools...
Page 177 Contents Contents 15.1 Service Tools................................15-1 15.1.1 Solvents / Lubricants Table ..............................15-1...
Page 179: Solvents / Lubricants Table
Chapter 15 15.1 Service Tools 15.1.1 Solvents / Lubricants Table 0016-1956 T-15-1 Name Purpose of Use Component Remarks Alcohol Cleaning Alcohols - Do not put close to fire. E.g.) Plastics - Source locally Rubber Metals Grease Buildup Toner Buildup Lubricating Oil - Apply to the gear Special oil - Molykote EM-50L...
Page 181 Jul 18 2007...

Canon MF4690 - ImageCLASS B/W Laser Service Manual

Chapter 1 Introduction

Chapter 2 Basic Operation

Chapter 3 Original Exposure System

Chapter 4 Original Feeding System

Chapter 5 Laser Exposure

Chapter 6 Image Formation

Chapter 7 Pickup and Feed System

Chapter 8 Fixing System

Chapter 9 External and Controls

Chapter 10 Maintenance and Inspection

Chapter 11 Measurement and Adjustments

Chapter 12 Correcting Faulty Images

Chapter 13 Error Code

Chapter 14 Service Mode

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