Kyocera ECOSYS P7035cdn Service Manual

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Operation manual (255 pages)

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Summary of Contents for Kyocera ECOSYS P7035cdn

Page 1: Service Manual
ECOSYS P7035cdn SERVICE MANUAL Published in May 2014 842PR111 2PRSM061 Rev.1...
Page 2 CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. It may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste officials for details in your area for proper disposal. ATTENTION IL Y A UN RISQUE D’EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE TYPE INCORRECT.
Page 3 Revision history Revision Date Replaced pages Remarks 20 May 2014 Contents, 1-1-2, 1-3-2 to 7, 1-6-3, 1-6-4, 2-4-3, Address...
Page 4 This page is intentionally left blank.
Page 5: Safety Precautions
Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.
Page 6 Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.
Page 7: Installation Precautions
1. Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check that it is adequate for the rated current...................... •...
Page 8: Precautions For Maintenance
2. Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly....• Always follow the procedures for maintenance described in the service manual and other related brochures............................• Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits.
Page 9 • Do not remove the ozone filter, if any, from the copier except for routine replacement....... • Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself......................•...
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Page 11 (1) Precautions ............................1-5-1 (2) Drum..............................1-5-1 (3) Toner container ..........................1-5-1 (4) How to tell a genuine Kyocera toner container..................1-5-2 1-5-2 Outer covers ............................1-5-3 (1) Detaching and refitting the left rear cover, left upper cover and left front cover........1-5-3 (2) Detaching and refitting the right rear cover, right upper cover and right front cover ......1-5-6...
Page 12 2PR-1 1-5-3 Paper feed section ..........................1-5-8 (1) Detaching and refitting the paper feed roller assembly (paper feed roller and pickup roller) ....1-5-8 (2) Detaching and refitting the retard roller ...................1-5-10 (3) Detaching and refitting the MP paper feed roller................1-5-11 1-5-4 Developing section..........................1-5-12 (1) Detaching and refitting the developing unit ..................1-5-12 1-5-5 Drum section............................1-5-14 (1) Detaching and refitting the drum unit ....................1-5-14...
Page 13 2-4 Appendixes 2-4-1 Appendixes .............................2-4-1 (1) Wiring diagram ..........................2-4-1 (2) Repetitive defects gauge........................2-4-3 (3) Maintenance Kitt..........................2-4-4...
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Page 15: Specifications
1-1 Specifications 1-1-1 Specifications Item Specifications Type Desktop Printing method Electrophotographic four color (CMYK) printing using tandem (4) drum system Cassette 60 to 120 g/m Paper weight MP tray 60 to 220 g/m , 220 g/m (Hagaki) Plain, Preprinted, Bond, Recycled, Rough, Letterhead, Color, Prepunched, Cassette High quality, and custom 1 to 8 Paper type...
Page 16 2PR-1 Item Specifications Standard 512 MB Main memory Maximum 1536 MB Windows XP, Windows XP Professional Windows Server 2003, Windows Server 2003 x64 Edition Windows Vista x86 Edition, Windows Vista x64 Edition Windows 7 x86 Edition, Windows 7 x64 Edition, Operating system Windows 8 x86 Edition, Windows 8 x64 Edition, Windows Server 2008, Windows Server 2008 x64 Edition,...
Page 17 1-1-2 Parts names (1) Overall 12 13 Figure 1-1-1 Operation panel Left side cover 15. Paper ramp Front cover Waste toner box 16. Duplex unit B Paper stopper 10. Toner Container M 17. USB memory slot Top cover (Top tray) 11.
Page 18 (2) Operation panel Figure 1-1-2 Message display Ready indicator Data indicator Attention indicator Arrow keys MENU key OK key Stop key Left select key 10. Right select key 11. Back key 1-1-4...
Page 19 1-1-3 Machine cross section Light path Light path Paper path Paper path (optional) Figure 1-1-3 Cassette 14. Developing unit C MP tray 15. Developing unit Y Duplex unit B 16. Developing unit K Drum unit M 17. Toner container M Drum unit C 18.
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Page 21: Installation Environment
1-2 Installation 1-2-1 Installation environment   Temperature: 10 to 32.5 C/50 to 90.5 Humidity: 15 to 80%RH Power supply: 120 V AC, 220 - 240 V AC, 15A ± ± Power source frequency: 50 Hz 0.3%/60 Hz 0.3% Installation location Avoid direct sunlight or bright lighting.
Page 22 1-2-2 Unpacking (1) Unpacking 220-240 V AC model Figure 1-2-2 220-240 V AC model Printer 10. Right upper pad Outer case 11. Toner container (Black) Bottom pad 12. Toner container (Yellow) Main pad 13. Toner container (Cyan) Upper pad 14. Toner container (Magenta) Machine cover 600 ...
Page 23 120 V AC model Figure 1-2-3 120 V AC model Printer 12. Cassette cushion US Outer case 13. Left upper pad Bottom sheet 14. Right upper pad Bottom pad FL 15. Toner container (Black) Bottom pad FR 16. Toner container (Yellow) Bottom pad BL 17.
Page 24 (2) Removing the tape, installation guide, stoppers, panel sheet and upper inner pad assembly <Procedure> 1. Remove the tape-A and then remove the Stopper Stopper installation guide. 2. Remove two tapes-B and then remove two Tape-B stoppers. 3. Remove three tapes-C. Tape-C 4.
Page 25 1-2-3 Installing the expansion memory modules (option) <Procedure> 1. Turn off printer power switch. Caution: Do not insert or remove expansion memory modules while printer power is on. Doing so may cause damage to the printer and the expansion memory modules. 2.
Page 26 1-2-4 Installing the SD card (option) <Procedure> 1. Turn off printer power switch. Caution: Do not insert or remove SD card while printer power is on. Doing so may cause damage to the printer and the SD card. 2. Remove the two screws and the option interface slot cover.
Page 27 1-2-5 Installing the SSD disk <Procedure> 1. Turn off printer power switch. Caution: Do not insert or remove SSD unit while printer power is on. Doing so may cause damage to the printer and the SSD. 2. Remove two screws and then remove the option interface slot cover.
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Page 29: Maintenance Mode
1-3 Maintenance Mode 1-3-1 Maintenance mode The printer is equipped with a maintenance function which can be used to maintain and service the machine. (1) Executing a maintenance item Message display Ready to Print. 1. Press the MENU key. Menu: Report Print USB Memory Job Box...
Page 30: Service Status Page
2PR-1 (2) Service mode Service items Description Service Status Printing a status page for service purpose Description Prints a status page for service purpose. The status page includes various printing settings and service cumulative. Purpose To acquire the current printing environmental parameters and cumulative information. Procedure 1.
Page 31 2PR-1 Service items Description Service status page (2) Service Status Page Printer 2013/06/07 15:15 Firmware version 2PR_2000.000.000 2013.06.07 [XXXXXXXX] [XXXXXXXX] [XXXXXXXX] Engine Information Send Information (23) NVRAM Version _1F31225_1F31225 (25) Date and Time 10/07/28 16:39 (24) MAC Address 00:C0:EE:D0:01:0D (26) Address (27) (28) (29)
Page 32 2PR-1 Service items Description Detail of service status page Description Supplement Firmware version System date Engine soft version Engine boot version Operation panel mask version Machine serial number Standard memory size Optional memory size Total memory size (10) Local time zone (11) Report output date Day/Month/Year hour:minute...
Page 33 2PR-1 Service items Description Description Supplement (23) NV RAM version _ 1F3 1225 _ 1F3 1225 (a) (b) (d) (e) (a) Consistency of the present software version and the database _ (underscore): OK * (Asterisk): NG (b) Database version (c) The oldest time stamp of database version (d) Consistency of the present software version and the ME firmware version _ (underscore): OK...
Page 34 2PR-1 Service items Description Description Supplement (38) Color printing double count mode 0: All single counts 3: Folio, Single count, Less than 330 mm (length) (39) Black and white printing double 0: All single counts count mode 3: Folio, Single count, Less than 330 mm (length) (40) Billing counting timing (41)
Page 35 2PR-1 Service items Description Description Supplement (59) (60) (61) (62) Toner low setting 0: Invalidity 1: Effective 0 to 100(%) (63) Toner low detection level (64) Full page printing Mode 0: Normal Mode 1: Full Page Mode 0: OFF, 1: ON (65) Wake Up Mode (66)
Page 36 Service items Description Network Status Printing a status page for network Description On the status page for network, detailed network setting information is printed. Procedure 1. In the [Service Setting] menu, press the arrow key to select [Network Status]. 2. Press the OK key. A confirmation screen appears. 3.
Page 37 Service items Description Maintenance Counter reset for the maintenance kit Description The "Install MK" message means that maintenance kit should be replaced at 300,000 sheets (images) of printing. The interval counter must be manually reset using this service item. Maintenance kit includes the following units: Drum unit ...
Page 38 Service items Description DEV-CLN Developer refreshing Description The laser output of the image data for developer refreshing is carried out, and operation to exposure, developing, and primary transfer is performed by 10 pages. (Paper is not fed) Purpose To perform cleaning when faulty images occur and a line appears longitudinally. Procedure 1.
Page 39 Service items Description LSU dust shield glass cleaning Description The LSU cleaning motor drives the cleaning pad which in turn wipes clean the LSU dust shield glass. Purpose To perform cleaning when the printed image is bad and stripes are seen in the vertical direc- tion.
Page 40: Printing Event Log
(3) Printing a event log (EVENT LOG) Service items Description Printing an event log Printing an event log (EVENT LOG) (EVENT LOG) Description Prints a history list of occurrences of paper jam, self-diagnostics, toner replacements, etc. Purpose To allow machine malfunction analysis based on the frequency of paper misfeeds, self diag- nostic errors and replacements.
Page 41: Event Log
Service items Description Detail of event log Event Log Printer 2013/05/31 15:15 Firmware version 2PR_2000.000.000 2013.05.31 [XXXXXXXX] [XXXXXXXX] [XXXXXXXX] Paper Jam Log (11) Counter Log Count. Event Descriprions Data and Time J0100: C0000: T00: 1876543 0501.01.08.01.01 2013/03/02 11:11 J0105: C0001: T01: 166554 4020.01.08.01.01...
Page 42 Service items Description Items Description Paper Count. Event cont. Remembers 1 to 16 of occurrence. The total page Log code (2 digit, hexadecimal, 5 cate- If the occurrence of the previous count at the time gories) paper jam is less than 16, all of the of the paper paper jams are logged.
Page 43 Service items Description Items Description Paper 4201: Eject sensor does not turn ON (Cassette) [H] cont. 4202: Eject sensor does not turn ON (Paper feeder 1) [H] 4203: Eject sensor does not turn ON (Paper feeder 2) [H] 4204: Eject sensor does not turn ON (Paper feeder 3) [H] 4205: Eject sensor does not turn ON (Paper feeder 4) [H] 4208: Eject sensor does not turn ON (Duplex) [H] 4209: Eject sensor does not turn ON (MP tray) [H]...
Page 44 Service items Description Items Description Paper Jam location cont. Printer [ I ] MP tray Cassette 1 Sensors Registration sensor Paper feeder 1 Paper exit sensor (Cassette 2) Duplex conveying sensor Paper full sensor PF paper feed sensor Paper feeder 2 (Cassette 3) Paper jam location [B] MP tray...
Page 45 Service items Description Items Description Paper Jam Log (b) Detail of paper source (Hexadecimal) cont. 00: MP tray 06: - 01: Paper cassette 1 (printer) 07: Duplex unit 02: Paper cassette 2 (paper feeder 1) 08: Bulk paper feeder 03: Paper cassette 3 (paper feeder 2) 09: Envelope feeder 04: Paper cassette 4 (paper feeder 3) 05: Paper cassette 5 (paper feeder 4)
Page 46 Service items Description Items Description Maintenance Count. Item Remembers 1 to 8 of The total page count at the Code of maintenance replacing occurrence of replace- time of the replacement of item (1 byte, 2 categories) NOTE: ment. If the occurrence of the toner container.
Page 47 Service items Description Items Description (11) Counter Log (f) Jam (g) Self diagnostic error (h) Maintenance item replacing Indicates the log counter Indicates the log counter of Indicates the log counter Comprised of of paper jams depending self diagnostics errors depending on the maintenance three log coun- on location.
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Page 49: Paper Misfeed Detection
1-4 Troubleshooting 1-4-1 Paper misfeed detection (1) Paper misfeed indication If the paper jammed in the paper transport system, or no paper sheets were fed at all, the “Paper jam” message appears and the location of the paper jam (the component where the paper jam has occurred) is also indicated. The printer auto- matically goes off-line when this message is displayed.
Page 50 (2) Paper misfeed detection condition Printer MP tray Cassette 1 Paper feeder 1 Sensors (Cassette 2) Registration sensor Paper exit sensor Duplex conveying sensor Paper feeder 2 Paper full sensor (Cassette 3) PF paper feed sensor Paper feeder 3 (Cassette 4) Paper feeder 4 (Cassette 5) Figure 1-4-2...
Page 51 1-4-2 Self-diagnostic function (1) Self-diagnostic function This printer is equipped with self-diagnostic function. When a problem is detected, the printer stops printing and display an error message on the operation panel. An error message consists of a message prompting a contact to service personnel, total print count, and a four-digit error code indicating the type of the error.
Page 52 (2) Self diagnostic codes Remarks Code Contents Causes Check procedures/corrective measures 0100 Backup memory read/write error Defective main Replace the main PWB (See page 1-5-27). PWB. 0110 Backup memory data error Defective main Replace the main PWB (See page 1-5-27). PWB.
Page 53 Remarks Code Contents Causes Check procedures/corrective measures 0640 Hard disk error Defective hard Replace the hard disk (See page 1-2-7). disk. Defective main Replace the main PWB (See page 1-5-27). PWB. 0930 I2C bus error Defective RFID. Replace the RFID. Defective drum Replace the drum unit (See page 1-5-14).
Page 54 Remarks Code Contents Causes Check procedures/corrective measures 1500 PF warm air heater (upper blower) The inlet of upper Check visually and remove it, if any (Refer 1520 high temperature error* blower assembly is to the service manual for the paper feeder). 1540 (Option paper feeder) blocked by paper...
Page 55 Remarks Code Contents Causes Check procedures/corrective measures 1600 PF warm air heater (upper blower) low Defective harness Reinsert the connector. Also check for conti- 1620 temperature error* between PF warm nuity within the connector harness. If none, 1640 (Option paper feeder) air heater 2 and PF remedy or replace the harness.
Page 56 Remarks Code Contents Causes Check procedures/corrective measures 1610 PF warm air heater (side blower) Defective harness Reinsert the connector. Also check for conti- 1630 error* between PF warm nuity within the connector harness. If none, 1650 (Option paper feeder) air heater 1 and PF remedy or replace the harness.
Page 57 Remarks Code Contents Causes Check procedures/corrective measures 2102 Developing motor MCY error Defective harness Reinsert the connector. Also check for conti- The ready signal cannot be detected between develop- nuity within the connector harness. If none, within 5 seconds after the developing ing motor MCY and remedy or replace the harness.
Page 58 Remarks Code Contents Causes Check procedures/corrective measures 2203 Drum motor M error Defective harness Reinsert the connector. Also check for conti- The ready signal cannot be detected between drum nuity within the connector harness. If none, within 5 seconds after the drum motor M motor M and remedy or replace the harness.
Page 59 Remarks Code Contents Causes Check procedures/corrective measures 2330 Fuser pressure change motor (over- Defective harness Reinsert the connector. Also check for conti- current) error between fuser nuity within the connector harness. If none, When the fuser pressure change motor pressure change remedy or replace the harness.
Page 60 Remarks Code Contents Causes Check procedures/corrective measures 2610 PF paper feed motor error Defective harness Reinsert the connector. Also check for conti- 2620 (Option paper feeder) between PF paper nuity within the connector harness. If none, 2630 The PF paper feed motor of paper feeder feed motor and PF remedy or replace the harness (Refer to the 2640...
Page 61 Remarks Code Contents Causes Check procedures/corrective measures 4201 Laser output error (Black) Defective engine Replace the engine PWB (See page 1-5- The pin photo signal (PDN) is not output PWB. 28). from PD PWB Y for one second while laser is emitted. 4202 Laser output error (Cyan) Defective engine...
Page 62 Remarks Code Contents Causes Check procedures/corrective measures 4700 VIDEO ASIC device error Faulty connection Check the installation of the main PWB and of the connector engine PWB and reinstall them if necessary between the main (See page 1-5-27 and 1-5-28). PWB and engine PWB.
Page 63 Remarks Code Contents Causes Check procedures/corrective measures 5303 Broken eraser lamp M wire Defective harness Reinsert the connector. Also check for conti- When the eraser lamp M is driven, the between drum unit nuity within the connector harness. If none, eraser lamp M over-current detection M and drum relay remedy or replace the harness.
Page 64: During Printing
Remarks Code Contents Causes Check procedures/corrective measures 6000 Broken fuser heater lamp 1 wire Defective harness Reinsert the connector. Also check for conti- The detected fuser thermistor 1 temper- between fuser nuity within the connector harness. If none,   thermistor 2 and remedy or replace the harness.
Page 65: Abnormally High Temperature Fuser Heater Lamp
Remarks Code Contents Causes Check procedures/corrective measures 6020 Abnormally high temperature fuser Shorted fuser Replace the fuser unit (See page 1-5-24). heater lamp 1 thermistor 2. The fuser thermistor 2 detects a temper- Defective engine Replace the engine PWB (See page 1-5- ...
Page 66 Remarks Code Contents Causes Check procedures/corrective measures 6030 Broken fuser thermistor 1 wire Defective harness Reinsert the connector. Also check for conti- The detected temperature of fuser between fuser nuity within the connector harness. If none,   thermistor 2 and remedy or replace the harness.
Page 67: Table Of Contents
Remarks Code Contents Causes Check procedures/corrective measures 6100 Broken fuser heater lamp 2 wire Defective harness Reinsert the connector. Also check for conti- The detected fuser thermistor 2 temper- between fuser nuity within the connector harness. If none,   thermistor 1 and remedy or replace the harness.
Page 68: Defective Engine Pwb
Remarks Code Contents Causes Check procedures/corrective measures 6130 Broken fuser thermistor 2 wire Defective harness Reinsert the connector. Also check for conti- Input from fuser thermistor 1 is 3 or less between fuser nuity within the connector harness. If none, (A/D value) continuously for 1 second thermistor 1 and remedy or replace the harness.
Page 69: Engine Pwb
Remarks Code Contents Causes Check procedures/corrective measures 7001 Toner motor K error Defective harness Reinsert the connector. Also check for conti- When the toner motor K is driven, the between toner nuity within the connector harness. If none, toner motor K over-current detection sig- motor K and remedy or replace the harness.
Page 70 Remarks Code Contents Causes Check procedures/corrective measures 7004 Toner motor Y error Defective harness Reinsert the connector. Also check for conti- When the toner motor Y is driven, the between toner nuity within the connector harness. If none, toner motor Y over-current detection sig- motor Y and remedy or replace the harness.
Page 71: Replace The Engine Pwb
Remarks Code Contents Causes Check procedures/corrective measures 7402 Developing unit C non-installing error Faulty connection Check the installation of the developing unit The EEPROM of the developing PWB C of the connector C and drum relay PWB and reinstall them if does not communicate normally.
Page 72 Remarks Code Contents Causes Check procedures/corrective measures 7404 Developing unit Y non-installing error Faulty connection Check the installation of the developing unit The EEPROM of the developing PWB Y of the connector Y and drum relay PWB and reinstall them if does not communicate normally.
Page 73 Remarks Code Contents Causes Check procedures/corrective measures 7412 Drum unit C non-installing error Faulty connection Check the installation of the developing unit The EEPROM of drum PWB C does not of the connector C and drum relay PWB and reinstall them if communicate normally.
Page 74 Remarks Code Contents Causes Check procedures/corrective measures 7414 Drum unit Y non-installing error Faulty connection Check the installation of the developing unit The EEPROM of drum PWB Y does not of the connector Y and drum relay PWB and reinstall them if communicate normally.
Page 75 Remarks Code Contents Causes Check procedures/corrective measures F040 Main PWB - Engine PWB communica- Faulty connection Check the installation of the main PWB and tion error of the connector engine PWB and reinstall them if necessary between the main (See page 1-5-27 and 1-5-28). PWB and engine PWB.
Page 76 1-4-3 Image formation problems (1)No image appears (2)No image appears (3)A specific color is (4)The back side gets (5)Image is too light. (entirely white). (entirely black). printed solid. dirty. See page 1-4-29 See page 1-4-30 See page 1-4-30 See page 1-4-30 See page 1-4-31 (6)The background is (7)White streaks are...
Page 77 (1) No image appears (entirely white). Print example Causes Check procedures/corrective measures No sec- Defective harness Reinsert the connector. Also check for continuity within the ondary between high voltage connector harness. If none, remedy or replace the harness. transfer PWB 2 and engine PWB charging.
Page 78 (2) No image appears (entirely black). Print example Causes Check procedures/corrective measures No main Defective harness Reinsert the connector. Also check for continuity within the charging. between high voltage connector harness. If none, remedy or replace the harness. PWB and engine PWB (YC600), or improper con- nector insertion.
Page 79 (5) Image is too light. Print example Causes Check procedures/corrective measures Defec- Defective developing unit. Replace the developing unit for the color that causes an error tive (See page 1-5-12). develop- Defective high voltage Replace the high voltage PWB 1 (See page 1-5-34). ing bias PWB 1.
Page 80 (7) White streaks are printed vertically. Print example Causes Check procedures/corrective measures Foreign object in one of the develop- Check the image by using the test print of service mode. If the ing units. white line appears on a particular page, replace the develop- ing unit for that color (See page 1-5-12).
Page 81: Replace The Fuser Unit
(11) The leading edge of image begins to print too early or too late. Print example Causes Check procedures/corrective measures Paper feed clutch or registration Check the installation of the clutch. If it operates incorrectly, clutch operating incorrectly. replace it. (12) Paper is wrinkled.
Page 82 (15) Fusing is loose. Print example Causes Check procedures/corrective measures Wrong types of paper. Check if the paper meets specifications, replace paper. Flawed heat roller or fuser belt. Replace the fuser unit (See page 1-5-24). (16) Colors are printed offset to each other. Print example Causes Check procedures/corrective measures...
Page 83: Replace The Engine Pwb
1-4-4 Electric problems Problem Causes Check procedures/corrective measures (1)The machine does The power cord is not Check the contact between the power plug and the outlet. not operate when the plugged in properly. power switch is No electricity at the power Measure the input voltage.
Page 84 Problem Causes Check procedures/corrective measures (5)MP paper feed Broken solenoid coil. Check for continuity across the coil. If none, replace the solenoid. solenoid, ID solenoid, Defective harness or Reinsert the connector. Also check for continuity within the con- duplex solenoid do improper connector inser- nector harness.
Page 85 Problem Causes Check procedures/corrective measures (12)A paper jam in A piece of paper torn from Check and remove if any. the paper feed sec- copy paper is caught tion, paper conveying around registration switch, section, fuser sec- duplex conveying sensor or tion or duplex section paper exit sensor.
Page 86: Mechanical Problems
1-4-5 Mechanical problems Problem Causes/check procedures Corrective measures (1)No primary paper Check if the surfaces of the paper feed roller, Clean with isopropyl alcohol. feed. MP paper feed roller are dirty with paper pow- der. Check if the paper feed roller, MP paper feed Check visually and replace any deformed roller are deformed.
Page 87 1-5 Assembly and Disassembly 1-5-1 Precautions for assembly and disassembly (1) Precautions Be sure to turn the power switch off and disconnect the power plug before starting disassembly. When handling PWBs, do not touch connectors with bare hands or damage the PWB. Use only the specified parts to replace the fuser unit thermostat.
Page 88 A black-colored band when seen through the left side window ( A shiny or gold-colored band when seen through the right side window ( The above will reveal that the toner container is a genuine Kyocera branded toner container, otherwise, it is a counterfeit. See through the left window...
Page 89 1-5-2 Outer covers (1) Detaching and refitting the left rear cover, left upper cover and left front cover Procedure 1. Open the left cover. 2. Remove the waste toner box. 3. Remove three screws. Left cover Screw Screws Waste toner box Figure 1-5-3 1-5-3...
Page 90 4. Open the top cover. 5. Release eight hooks and then remove the left rear cover. Top cover Left rear cover Hook positions Left rear cover Figure 1-5-4 1-5-4...
Page 91 6. Open the front cover. 7. Remove the screw and then remove the left upper cover. 8. Slide the left front cover upward and then remove it. Screw Left upper cover Left front cover Front cover Figure 1-5-5 1-5-5...
Page 92 (2) Detaching and refitting the right rear cover, right upper cover and right front cover Procedure 1. Open the top cover. 2. Release ten hooks and then remove the right rear cover. Right rear cover Hook positions Right rear cover Figure 1-5-6 1-5-6...
Page 93 3. Open the front cover. 4. Remove two screws and then remove the right upper cover. 5. Slide the right front cover and then remove Screw Screw Right upper cover Right front cover Front cover Figure 1-5-7 1-5-7...
Page 94 1-5-3 Paper feed section (1) Detaching and refitting the paper feed roller assembly (paper feed roller and pickup roller) Procedure 1. Remove the cassette. Cassette Figure 1-5-8 1-5-8...
Page 95 2. While pressing lever A and then slide the feed roller pin. 3. While pressing the lever B and then remove the paper feed roller assembly. Feed roller pin Lever A Paper feed Lever B rollerassembly Figure 1-5-9 4. Check or replace the paper feed roller assembly and refit all the removed parts.
Page 96 (2) Detaching and refitting the retard roller Procedure 1. Remove the cassette (See page 1-5-8). Retard guide 2. Push the bottom plate down until it locks. Hook 3. Release two hooks and then remove the retard guide (retard roller assembly). Hook Cassette Cassette...
Page 97 (3) Detaching and refitting the MP paper feed roller Procedure 1. Open the front cover. 2. While releasing the hook and the slide the MPF shaft. 3. Remove the MP paper feed roller. 4. Check or replace the MP paper feed roller and refit all the removed parts.
Page 98 1-5-4 Developing section (1) Detaching and refitting the developing unit Procedure 1. Remove the intermediate transfer unit (See page 1-5-16). 2. Remove the drum unit (M,C,Y and K) (See page 1-5-14). Lever 3. Pinch the lever of developing unit to release the lock.
Page 99 5. Check or replace the developing unit and refit all the removed parts. NOTE: Remove the cap before installing the new developing unit. Developing unit (New) When reinstalling the developing unit, press it down until the lever of developing unit is engaged with the notch.
Page 100 1-5-5 Drum section (1) Detaching and refitting the drum unit Procedure 1. Remove the intermediate transfer unit (See page 1-5-16). Grip 2. Hold the grips and then remove the drum unit (M,C,Y and K). Grip 3. Check or replace the drum unit and refit all the removed parts.
Page 101 (2) Detaching and refitting the main charger unit Procedure 1. Open the left cover. 2. Remove the screw and then remove the main charger unit (M,C,Y and K). 3. Check or replace the main charger unit and refit all the removed parts. Main charger unit M Left cover...
Page 102 1-5-6 Transfer/separation section (1) Detaching and refitting the intermediate transfer unit Procedure 1. Open the top cover. 2. Remove the all toner containers (M,C,Y and Toner container M Top cover Figure 1-5-18 3. Remove the all container guides (M,C,Y and Container guide M Figure 1-5-19 1-5-16...
Page 103 4. Remove two screws. Screw 5. Open the RFID holder. Screw RFID holder Figure 1-5-20 6. Hold the grips and then remove the interme- diate transfer unit. 7. Check or replace the intermediate transfer Projection Intermediate Projection unit and refit all the removed parts. transfer unit Guide Guide...
Page 104 (2) Detaching and refitting the transfer roller unit Procedure 1. Open the front cover. 2. Open the duplex unit B. 3. Release two hooks and then remove the transfer roller unit. 4. Check or replace the transfer roller unit and refit all the removed parts.
Page 105 (3) Detaching and refitting the duplex unit B Procedure 1. Remove the outer covers (See page 1-5-3). 2. Remove the power source PWB (See page 1-5-25). 3. Open the front cover. 4. Remove the screw and then remove the front cover right stopper. Screw Front cover Front cover...
Page 106 7. Remove the axis of the front cover left stop- per from the hole. 8. Remove the front cover. Front cover Front cover left stopper left stopper Hole Front cover Axis Front cover left stopper Front cover Figure 1-5-25 9. Remove the connector. 10.
Page 107 11. Remove six screws and then remove the Screw feed drive unit. 12. Remove four connectors from the engine PWB. Screw Screw Screw Screw Feed drive unit Screw Engine PWB Feed drive unit Connectors YC26 YC40 Connectors Engine PWB Figure 1-5-27 1-5-21...
Page 108 13. Remove two screws and then remove the MP paper feed lower unit. Screw MP paper feed lower unit Screw Figure 1-5-28 14. Remove two screws and then remove the developing fan motor 1. 15. Remove three connectors from the engine PWB.
Page 109 16. Remove the spring. 17. Open the duplex unit B. 18. Remove the duplex unit B. 19. Check or replace the duplex unit B and refit all the removed parts. Duplex unit B Bush Spring Bush Spring Figure 1-5-30 1-5-23...
Page 110 1-5-7 Fuser section (1) Detaching and refitting the fuser unit Procedure 1. Remove the outer covers (See page 1-5-3). 2. Remove five connectors. Connectors Connector Connectors Figure 1-5-31 3. Open the duplex unit B. 4. Remove two screws. 5. Remove the fuser unit. Fuser unit 6.
Page 111 1-5-8 PWBs (1) Detaching and refitting the power source PWB Procedure 1. Remove the right rear cover (See page 1-5- 2. Remove three screws and then remove the power source shield. Screw Power source shield Screws Figure 1-5-33 3. Remove two screws. Screw Screw Figure 1-5-34...
Page 112 4. Release the hook and then remove the power source PWB. 5. Remove three connectors and then remove Connector the power source PWB. 6. Check or replace the power source PWB and refit all the removed parts. Hook (Connector) Connector (Connector) Connector (Connector)
Page 113 (2) Detaching and refitting the main PWB Procedure 1. Remove two screws. 2. Remove the main PWB. 3. Check or replace the main PWB and refit all the removed parts. Screw Main PWB Screw Figure 1-5-36 1-5-27...
Page 114 (3) Detaching and refitting the engine PWB Procedure 1. Remove the fuser unit (See page 1-5-24). 2. Remove the duplex unit B (See page 1-5- 19). 3. Remove the front cover open/close switch. 4. Remove nine connectors and one FFC from the engine PWB.
Page 115 5. Remove seven screws and then remove the feed housing. (Terminal) Feed housing FRONT Screw Feed housing Screw Screw LEFT RIGHT Screw Screw Screw Screw Figure 1-5-38 1-5-29...
Page 116 6. Release the lock lever and then remove the link lever. 7. Remove three connectors and three FFCs from the engine PWB. Lock lever Link lever Link lever FFCs Connector Connector Connector Engine PWB YC13 YC617 YC14 Connector Connector FFCs Engine PWB (ID solenoid) YC600...
Page 117 8. Remove five connectors and one FFC from the engine PWB. 9. Remove three screws. Screw Engine PWB assembly Screw Engine PWB Engine PWB assembly Screw YC34 YC614 YC619 YC11 YC28 YC33 Connector Connectors Connector Engine PWB Figure 1-5-40 1-5-31...
Page 118 10. Draw the engine PWB assembly slightly. 11. Remove eleven connectors from the engine PWB. Engine PWB assembly Engine PWB YC608 YC27 YC618 YC17 YC22 YC23 YC24 YC25 YC15 Engine PWB Connectors (eleven) Figure 1-5-41 12. Remove the engine PWB assembly. Engine PWB assembly Figure 1-5-42 1-5-32...
Page 119 13. Remove two screws and then remove the engine PWB. EEPROM Screw 14. Check or replace the engine PWB and refit all the removed parts. To replace the engine PWB, remove the EEPROM (U4) from the old engine PWB and mount it to the new engine PWB. Screw Engine PWB Figure 1-5-43...
Page 120 (4) Detaching and refitting the high voltage PWB 1 Procedure 1. Remove the cassette. 2. Remove the main PWB (See page 1-5-27). 3. Remove the left rear cover and left front cover (See page 1-5-3). 4. Remove the right rear cover and right front cover (See page 1-5-6).
Page 121 10. Release the wire clamp and then remove the wires. Left duct B 11. Remove the connector. 12. Release four hooks and then remove the left Hook side fan motor. Hooks Hook Left duct B Wire clamp Connector Wires Left side fan motor Figure 1-5-46 13.
Page 122 15. Remove each two screws and then remove two left frame stays. Left frame stay Screws Screws Left frame stay Figure 1-5-48 16. Release three hooks. 17. Pull down three bosses and then remove the waste toner assembly. Boss Waste toner assembly Boss Boss...
Page 123 18. Release four hooks and then remove the HV bracket assembly. Hook HV bracket assembly Figure 1-5-50 19. Release each one hook and then remove three HV contact assemblies C. HV contact assembly C HV contact assembly C HV contact assembly C Hook HV contact assembly C...
Page 124 20. Release the hook and then remove the TC high voltage bracket. 21. Remove three terminals. Terminal TC high voltage bracket Terminals TC high voltage Hook bracket Terminal Figure 1-5-52 22. Remove two screws. Screws Figure 1-5-53 1-5-38...
Page 125 23. Remove the screw. Screw Screw Figure 1-5-54 24. Remove the high voltage PWB assembly. High voltage PWB assembly Figure 1-5-55 1-5-39...
Page 126 25. Remove five screws and then remove the Screw high voltage PWB 1. 26. Check or replace the high voltage PWB 1 Screw and refit all the removed parts. Screw Screw Screw High voltage PWB 1 Figure 1-5-56 1-5-40...
Page 127 (5) Detaching and refitting the high voltage PWB 2 Procedure 1. Remove the duplex unit B (See page 1-5- 19). 2. Release four hooks and then remove the DU feed guide. Hook DU feed guide Hook Figure 1-5-57 3. Remove three screws. Screw 4.
Page 128 1-5-9 Others (1) Detaching and refitting the laser scanner unit Procedure 1. Remove the left rear cover (See page 1-5- 12). 2. Remove the all developing units (See page 1-5-12). 3. Remove two screws and then remove the developing fan motor 1. 4.
Page 129 6. Remove two screws. 7. Draw the wires into the printer inside. Screw 8. Hold the handle and then remove the laser scanner unit. 9. Check or replace the laser scanner unit and Handle refit all the removed parts. Screw Laser scanner unit Wires Figure 1-5-61...
Page 130 (2) Direction of installing the principal fan motors When detaching or refitting the ozone fan motor, developing fan motor 1, developing fan motor 2, left side fan motor or LSU fan motor, be careful of the airflow direction (intake or exhaust). Intake Developing fan motor 2 Intake...
Page 131: Downloading Firmware
1-6 Firmware 1-6-1 Downloading firmware (1) Firmware file Firmware files are named after the following codes: Firmware file name example Engine firmware DL _E NGN. 2PR master download file S2 PR _100 0000 0 2 4 . x Extention Software ID Product code Build number 2PR: This machine...
Page 132 (2) Downloading the firmware from the USB memory To download data written in a USB memory to the printer, proceed as explained in this section. CAUTION Downloading firmware takes several minutes. Do not turn power off during downloading. Procedure 1. Turn printer power off. 2.
Page 133 2PR-1 10. Turn printer power off. 11. Remove the USB memory from USB mem- ory slot. 12. Turn printer power on. 13. Print the status page to check that the firm- ware version has been updated (See page P.1-3-2). USB memory slot USB memory Figure 1-6-4 Safe-UPDATE...
Page 134 2PR-1 (3) Emergency-UPDATE If Safe Update is processed to the end, the firmware update is complete. In case the message below is indicated, update the firmware after recovery with the steps below. Note that this is unoperable when the device is operating normally. FW-Update Error FFFF...
Page 135 2-1 Mechanical Construction 2-1-1 Paper feed/conveying section Paper feed/conveying section consists of the paper feed unit that feeds paper from the cassette and the MP tray paper feed unit that feeds paper from the MP tray, and the paper conveying section that conveys the fed paper to the transfer/ separation section.
Page 136 (2) MP tray paper feed section The MP tray can contain about 150 sheets. Feeding from the MP tray is performed by the rotation of the MP paper feed roller. Also, function of the MPF separation pad prevents paper from multiple feeding. Figure 2-1-3 MP tray paper feed section MP paper feed roller MPF friction pad...
Page 137 (3) Paper conveying section The paper conveying section conveys paper to the transfer/separation section as paper feeding from the cassette or MP tray, or as paper refeeding for duplex printing. Paper by feeding is conveyed by the middle roller to the position where the registration sensor is turned on, and then sent to the transfer/separation section by the front registration roller and rear registration roller.
Page 138 2-1-2 Drum section (1) Drum section The drum section consists of the drum, the main charger unit, and the cleaning unit, and the drum surface is uniformly charged in preparation for formation of residual image by laser beam. After transfer is complete, toner remaining on the drum surface is chipped off with the cleaning blade and is collected to the waste toner box with the drum screw.
Page 139 DRUMMOTMRDYN YC608-B1 Drum SPEEDSEL YC608-B2 Drum DRUMMOTCLK Drum relay YC608-B3 motor M Eraser lamp M DRUMMOTMREN YC608-B4 ERASEDR YC9-2 Drum PWB M EEDATA YC9-1 EECLK YC9-3 Engine PWB EEPROM YC9-7 YC9-8 Drum unit M DRUMMOTCRDYN YC608-7 Drum SPEEDSEL YC608-8 Drum DRUMMOTCLK motor C YC608-9...
Page 140 (2) Main charger unit The main charger unit consists of the MC case, the MC roller, and the MC CLN roller, and charges the drum for image forming. Figure 2-1-9 Main charger unit MC case MC roller MC CLN roller 2-1-6...
Page 141 Drum unit M Drum High voltage Engine PWB PWB 1 Main charger unit M MACMCNT Main charger output M YC600-30 MDCMCNT YC600-29 Drum unit C Drum Main charger unit C MACCCNT Main charger output C YC600-26 MDCCCNT YC600-25 Drum unit Y Drum Main charger unit Y MACYCNT...
Page 142: Expose Section
2-1-3 Expose section (1) Laser scanner unit The charged surface of the drum is then scanned by the laser beam from the laser scanner unit. The laser beam is dis- persed as the polygon motor revolves to reflect the laser beam over the drum. Various lenses and mirror are housed in the laser scanner unit, adjust the diameter of the laser beam, and focalize it at the drum surface.
Page 143 Laser scanner unit Engine PWB Main PWB APC PWB M LONBMN YC1-2 YC606-2 ENBMN YC1-3 YC606-3 VDOMP VDCMP YC31-A1 YC6-A20 YC1-4 YC606-4 VDOMN VDCMN YC31-A2 YC6-A19 YC1-5 YC606-5 PD PWB M VREFM YC1-7 YC606-7 PDMN YC31-A6 YC6-A15 APC PWB C LONBCN YC1-2 YC606-9...
Page 144 2-1-4 Developing section The developing unit consists of the sleeve roller that forms the magnetic brush, the magnet roller, the developing blade and the developing screws that agitate the toner. Also, the toner sensor checks whether or not toner remains in the devel- oping unit.
Page 145 Sleeve Developing sleeve bias output M TNMMDRN Toner roller YC25-2 motor M Developing magnet bias output M Magnet Toner roller sensor M Developing High unit M Developing PWB M Engine PWB voltage (EEPROM) PWB 1 Developing sleeve Sleeve bias output C roller TNMCDRN Toner...
Page 146 2-1-5 Transfer/separation section The transfer/separation section consists of the intermediate transfer unit and the transfer roller unit. The intermediate transfer unit consists of the transfer cleaning unit, the transfer belt, and the four primary transfer rollers for respective color drums, and forms a full-color toner image by superimposing and transferring single-color toner images formed on each drum onto the transfer belt.
Page 147 Transfer belt Separation Primary Primary Primary Primary needle transfer transfer transfer transfer Cleaning roller M roller C roller Y roller K roller Secondary transfer roller Left Right ID sensor ID sensor Cleaning bias output Primary transfer bias output M Primary transfer bias output C Primary transfer bias output Y High voltage PWB 1...
Page 148: Fuser Thermistor
2-1-6 Fuser section The paper sent from the transfer/separation section is interleaved between the heat roller and the fuser belt (press roller). The heat roller is heated by the fuser heater lamp, and the toner is fused by heat and pressure and fixed onto the paper because the press roller is pressed by the fuser press spring.
Page 149 Fuser pressure YC615-2 Fuser pressure change change sensor motor PDIRN ENVETRA YC602-5 YC1-3 YC8-2 Fuser unit Paper exit PWB FTHERM1 FTHERM1 Fuser YC602-1 YC1-1 YC4-2 thermistor 1 Fuser thermistor 2 FTHERM2 FTHERM2 YC602-3 YC1-3 YC5-1 Engine PWB Fuser Fuser Power source PWB thermal cutout heater lamp ZCROSS...
Page 150 2-1-7 Paper exit/feed shift section The paper exit/feedshift section consists of the conveying path which sends the paper that has passed the fuser section to the top tray or the duplex section. The conveying path is switched by the change guide activated by the duplex solenoid. Figure 2-1-19 Paper exit/feed shift section Paper exit roller Paper exit upper guide...
Page 151 Paper exit PWB Engine PWB Paper full sensor FDFUL YC1-7 YC602-7 Paper exit sensor EXITPAP YC1-4 YC602-4 Duplex DUREVDRN DUREVDRN YC3-2 YC1-11 YC602-11 solenoid FUMOTREN YC605-4 FUMOTCLK YC605-3 Fuser motor SPEEDSEL YC605-2 FUMOTRDYN YC605-1 Figure 2-1-20 Paper exit section block diagram 2-1-17...
Page 152 2-1-8 Duplex/conveying section The duplex/conveying section consists of conveying path which sends the paper sent from the eject section to the paper feed/conveying section when duplex printing. Figure 2-1-21 Duplex/conveying section DU roller Actuator DU feed roller (duplex conveying sensor) Paper exit pulley DU feed guide PA pulley...
Page 153 Engnie PWB Paper exit PWB DUREVDRN DUREVDRN Duplex YC3-2 YC1-11 YC602-11 solenoid STDUBN YC17-1 STDUAN YC17-2 Duplex motor STDUB YC17-3 STDUA YC17-4 Duplex DUREGPAP YC21-3 conveying sensor DUCLDRN Duplex YC3-9 clutch Figure 2-1-22 Duplex/paper conveying section block diagram 2-1-19...
Page 154 This page is intentionally left blank. 2-1-20...
Page 155: Electrical Parts Layout
2-2 Electrical Parts Layout 2-2-1 Electrical parts layout (1) PWBs Machine left Machine inside Machine right Figure 2-2-1 PWBs Main PWB ............ Controls the software such as the print data processing and provides the interface with computers. Engine PWB..........Controls printer hardware such as high voltage/bias output control, paper conveying system control, and fuser temperature control, etc.
Page 156 15. Drum PWB M ..........Relays wirings from electrical components on the drum unit M. Drum indi- vidual information in EEPROM storage. 16. Drum PWB C ..........Relays wirings from electrical components on the drum unit C. Drum indi- vidual information in EEPROM storage. 17.
Page 157 (2) Switches and sensors Machine left Machine inside Machine right Figure 2-2-2 Switches and sensors Power switch..........Turns ON/OFF the AC power source. Interlock switch ..........Shuts off 24 V DC power line when the top cover and front cover are opened.
Page 158 23. Fuser thermistor 2........Measures the heat roller temperature (center). 24. Fuser thermal cutout ........Shuts off the power source to the fuser heater lamp 1/2 when the heat roller reaches extremely high temperature. 2-2-4...
Page 159 (3) Motors Machine left Machine inside Machine right Figure 2-2-3 Motors Paper feed motor ......... Drives the paper feed section. Lift motor ............Operates the bottom plate in the cassette. Polygon motor..........Drives the polygon mirror. Drum motor M ..........Drives drum unit M. Drum motor C ..........
Page 160 (4) Other electrical components Machine left Machine inside Machine right Figure 2-2-4 Other electrical components Paper feed clutch ......... Controls the paper cassette paper feed. Registration clutch ........Controls the secondary paper feed. Intermediate clutch........Controls the paper conveying at the conveying section. Duplex clutch ..........
Page 161 2-3 Operation of the PWBs 2-3-1 Power source PWB YC102 YC103 YC101 Figure 2-3-1 Power source PWB silk-screen diagram Connector Signal Voltage Description YC101 LIVE 120 V AC AC power input Connected 220 - 240 V AC to the AC NEUTRAL 120 V AC AC power input...
Page 162 2-3-2 Engine PWB YC601 YC602 YC37 YC38 YC21 Figure 2-3-2 Engine PWB silk-screen diagram 2-3-2...
Page 163 Connector Signal Voltage Description FEMOTRDYN 0/3.3 V DC Paper feed motor ready signal Connected SPEEDSEL 0/3.3 V DC Paper feed motor speed switch signal to the paper FEMOTCLK 0/3.3 V DC (pulse) Paper feed motor clock signal feed motor, FEMOTREN 0/3.3 V DC Paper feed motor: On/Off intermedi-...
Page 164 Connector Signal Voltage Description YC14 +24V3 24 V DC 24 V DC power source Connected N.C. Not used to the left +24V4 24/0 V DC 24 V DC power source cover switch Left cover switch: On/Off YC17 STDUBN 0/24 V DC (pulse) Duplex motor drive control signal (_B) Connected STDUAN 0/24 V DC (pulse) Duplex motor drive control signal (_A)
Page 165 Connector Signal Voltage Description YC26 DLPCLDRN 0/24 V DC Developing clutch K: On/Off Connected +24V3 24 V DC 24 V DC power source to the devel- MOTKREV 0/3.3 V DC Developing motor K drive switch signal oping clutch DLPMOTKRDYN 0/3.3 V DC Developing motor K ready signal K, develop- SPEEDSEL...
Page 166 Connector Signal Voltage Description YC31 VDOCP LVDS APC PWB C video data signal (+) Connected VDOCN LVDS APC PWB C video data signal (-) to the main VDOCP LVDS APC PWB K video data signal (+) VDOCN LVDS APC PWB K video data signal (-) Ground PDMN 0/3.3 V DC (pulse) Horizontal synchronization signal...
Page 167 Connector Signal Voltage Description YC37 LSUMOTA 24/0 V DC LSU cleaning motor: Fwd/Stop/(Rev) Connected LSUMOTB 24/0 V DC LSU cleaning motor: Rev/Stop/(Fwd) to the LSU cleaning motor YC38 +24V1 24 V DC 24 V DC power source Connected PSFANDRN 0/12/24 V DC Power source fan motor: Full speed/Half speed/Off to the power source fan...
Page 168 Connector Signal Voltage Description BMSCNT Developing sleeve DC Control signal (Magenta) YC600 Connected BMMCNT Developing magnet AC Control signal (Magenta) to the high CLCNT Cleaning bias control signal voltage T1YCNT Primary transfer bias control signal (Yellow) PWB 1 T1CCNT Primary transfer bias control signal (Cyan) T1MCNT Primary transfer bias control signal (Magenta) T1RREM...
Page 169 Connector Signal Voltage Description YC606 +5V3 5 V DC 5 V DC power source Connected LONBMN 0/3.3 V DC APC PWB M sample/hold signal to the APC ENBMN 0/3.3 V DC APC PWB M laser enable signal PWB M/C VDOMP LVDS APC PWB M video data signal (+) VDOMN...
Page 170 Connector Signal Voltage Description YC608 DRUMMOTMRDYN 0/3.3 V DC Drum motor M ready signal Connected SPEEDSEL 0/3.3 V DC Drum motor M speed change signal to the drum DRUMMOTCLK 0/3.3 V DC (pulse) Drum motor M clock signal motor Y/K/ DRUMMOTMREN 0/3.3 V DC Drum motor M: On/Off...
Page 171 2-3-3 Paper exit PWB Figure 2-3-3 Paper exit PWB silk-screen diagram 2-3-11...
Page 172 Connector Signal Voltage Description FTHERM1 Analog Fuser thermistor 1 detection voltage Connected +3.3V2 3.3 V DC 3.3 V DC power source to the FTHERM2 Analog Fuser thermistor 2 detection voltage engine EXITPAP 0/3.3 V DC Paper exit sensor: On/Off PWB. ENVETRA 0/3.3 V DC Fuser pressure change sensor: On/Off...
Page 173 2-4 Appendixes 2-4-1 Appendixes (1) Wiring diagram 2-4-1...
Page 174 2-4-2...
Page 175 2PR-1 (2) Repetitive defects gauge First occurrence of defect 31 mm ( 1 " Rear registration roller 50 mm ( 1 " Front registration roller 15/16 63 mm ( 2 " Developing roller (Developing unit) 65 mm ( 2 " Transfer roller 9/16 79 mm ( 3...
Page 176 (3) Maintenance Kitt Maintenance part name Alternative Part No. part No. Name used in service manual Name used in parts list Maintenance kit MK-570 MK-570/MAINTENANCE KIT (OPTION) 1702HG7US0 072HG7US (300,000 images) Retard roller assembly RETARD ROLLER ASSY Developing unit K DV-570 US(K) Developing unit Y DV-570 US(Y)