Service Manual
Page 4
... 1-29 Exposing process 1-31 Developing process 1-32 First transfer (drum) process 1-34 Belt discharge (erase lamp) process 1-35 Belt cleaning process 1-36 Details of the transfer system 1-38 Second transfer (paper) process 1-38 Transfer belt cleaning process 1-39 Details of the optical system ... symptom table 2-27 Printer service checks 2-29 901-Yellow developer clutch service check 2-29 902-Magenta developer clutch service check 2-31 903-Cyan developer clutch service check 2-33 904-Black developer clutch service check 2-35 905-Yellow toner retract solenoid service check 2-37...
... 1-29 Exposing process 1-31 Developing process 1-32 First transfer (drum) process 1-34 Belt discharge (erase lamp) process 1-35 Belt cleaning process 1-36 Details of the transfer system 1-38 Second transfer (paper) process 1-38 Transfer belt cleaning process 1-39 Details of the optical system ... symptom table 2-27 Printer service checks 2-29 901-Yellow developer clutch service check 2-29 902-Magenta developer clutch service check 2-31 903-Cyan developer clutch service check 2-33 904-Black developer clutch service check 2-35 905-Yellow toner retract solenoid service check 2-37...
Service Manual
Page 5
... service check 2-63 986-Duplex connection error 2 service check 2-64 990-Transfer belt unit service check 2-65 991-Transfer roller clutch service check 2-67 992-Transfer belt cleaning roller clutch service check . . . . 2-68 993-Fuser clutch service check 2-69 994-OPC belt marker sensor service check 2-70 995-...sensing service check 2-87 Printer no power service check 2-89 Toner feed service check 2-91 Toner low/empty service check 2-92 Transfer roller missing service check 2-93 Tray empty service check 2-95 Waste toner bottle service check 2-97 Waste toner feed service check 2-...
... service check 2-63 986-Duplex connection error 2 service check 2-64 990-Transfer belt unit service check 2-65 991-Transfer roller clutch service check 2-67 992-Transfer belt cleaning roller clutch service check . . . . 2-68 993-Fuser clutch service check 2-69 994-OPC belt marker sensor service check 2-70 995-...sensing service check 2-87 Printer no power service check 2-89 Toner feed service check 2-91 Toner low/empty service check 2-92 Transfer roller missing service check 2-93 Tray empty service check 2-95 Waste toner bottle service check 2-97 Waste toner feed service check 2-...
Service Manual
Page 86
Go to "992-Transfer belt cleaning roller clutch service check" on page 2-68. 993 Fuser clutch error Indicates a problem with transfer unit cleaning roller clutch cable connection. 5021-0XX Error code Action 990 Transfer belt (transfer unit) error Indicates unstable transfer belt rotation; Go to "991-Transfer roller clutch service check" on page 2-70. 995 Charger HV unit error Indicates a problem...
Go to "992-Transfer belt cleaning roller clutch service check" on page 2-68. 993 Fuser clutch error Indicates a problem with transfer unit cleaning roller clutch cable connection. 5021-0XX Error code Action 990 Transfer belt (transfer unit) error Indicates unstable transfer belt rotation; Go to "991-Transfer roller clutch service check" on page 2-70. 995 Charger HV unit error Indicates a problem...
Service Manual
Page 104
See "Printer no power service check" on page 2-101. See "Print quality service checks" on page 2-89. Ensure developer clutch connectors (DCLK, DCLY, DCLM, DCLC) on page 2-2. Find the failing fan and follow the action suggested. See "Service error codes" on the I/O board are... belt (photodeveloper) cartridge drive service check" on page 2-85. See "Waste toner feed service check" on page 2-121. 5021-0XX Symptom The transfer roll is not transferring images or does not turn No power Waste toner feed problems Fans not working or making noise Print/image problems Printer does not stop...
See "Printer no power service check" on page 2-101. See "Print quality service checks" on page 2-89. Ensure developer clutch connectors (DCLK, DCLY, DCLM, DCLC) on page 2-2. Find the failing fan and follow the action suggested. See "Service error codes" on the I/O board are... belt (photodeveloper) cartridge drive service check" on page 2-85. See "Waste toner feed service check" on page 2-121. 5021-0XX Symptom The transfer roll is not transferring images or does not turn No power Waste toner feed problems Fans not working or making noise Print/image problems Printer does not stop...
Service Manual
Page 145
... connector that connects I2CN on on page 4-55. printer right cover. Replace I /O board shield. DCN10 pins 7 and 8 (cable) to transfer roller clutch. See "Clutch removal" on page 4-70. persists, go to board removal" remove I /O Go to DCN3 on page 4-70 for steps to Check cable ... 3 Remove engine controller Replace engine Replace cable. controller board removal" See "Engine on page 4-22. board shield. 991-Transfer roller clutch service check 5021-0XX Step Questions / actions Yes No 1 Turn printer off and remove Go to controller remove shield. Replace faulty...
... connector that connects I2CN on on page 4-55. printer right cover. Replace I /O board shield. DCN10 pins 7 and 8 (cable) to transfer roller clutch. See "Clutch removal" on page 4-70. persists, go to board removal" remove I /O Go to DCN3 on page 4-70 for steps to Check cable ... 3 Remove engine controller Replace engine Replace cable. controller board removal" See "Engine on page 4-22. board shield. 991-Transfer roller clutch service check 5021-0XX Step Questions / actions Yes No 1 Turn printer off and remove Go to controller remove shield. Replace faulty...
Service Manual
Page 146
.... If Disconnect cable from problem DCN10 on I /O board removal" board. printer right cover. Measure resistance between 198 and 242 ohms? 5021-0XX 992-Transfer belt cleaning roller clutch service check Step Questions / actions Yes No 1 Turn printer off and remove Go to controller remove shield. See "Right cover removal" on page 4-70...
.... If Disconnect cable from problem DCN10 on I /O board removal" board. printer right cover. Measure resistance between 198 and 242 ohms? 5021-0XX 992-Transfer belt cleaning roller clutch service check Step Questions / actions Yes No 1 Turn printer off and remove Go to controller remove shield. See "Right cover removal" on page 4-70...
Service Manual
Page 176
...toner feeder removal" on page 4-73. 6 Inspect waste toner feeder Replace waste Problem solved. and opening in bottom of toner feeder. clutch. Is waste toner toner agitator. roller properly installed. service check" on page 4-72. 5 Check waste toner agitator Replace waste Go... auger. 5021-0XX Waste toner feed service check Step Questions / actions Yes No 1 Is transfer belt unit cleaning Go to step 5. Properly install cleaning roller. 2 Check cleaning roller clutch Replace gear (located inside printer) cleaning roller for damage. "Waste toner auger removal" on ...
...toner feeder removal" on page 4-73. 6 Inspect waste toner feeder Replace waste Problem solved. and opening in bottom of toner feeder. clutch. Is waste toner toner agitator. roller properly installed. service check" on page 4-72. 5 Check waste toner agitator Replace waste Go... auger. 5021-0XX Waste toner feed service check Step Questions / actions Yes No 1 Is transfer belt unit cleaning Go to step 5. Properly install cleaning roller. 2 Check cleaning roller clutch Replace gear (located inside printer) cleaning roller for damage. "Waste toner auger removal" on ...
Service Manual
Page 189
... retract system Action Ensure toner cartridge moves in question with one of resistance. Replace toner cartridge if defective. Replace transfer belt unit cleaning roller clutch. See "Toner retract solenoid and cam removal" on page 4-40. Compare toner cartridge in and out of printer without a lot of the other known working ...
... retract system Action Ensure toner cartridge moves in question with one of resistance. Replace toner cartridge if defective. Replace transfer belt unit cleaning roller clutch. See "Toner retract solenoid and cam removal" on page 4-40. Compare toner cartridge in and out of printer without a lot of the other known working ...
Service Manual
Page 199
White band service check 5021-0XX Horizontal white banding creates missing portion of printer) is not making proper contact with high voltage spring contact. Problem area 1 Transfer roller 2 Transfer roller clutch Action • Transfer roller bias pole is not damaged. • Replace faulty transfer roller. Replace faulty transfer roller clutch. Ensure spring contact on left side (looking from front of image. See "Clutch removal" on page 4-8. Remove and reinstall transfer roller. See "Transfer roller removal" on page 4-40. Diagnostic information 2-121
White band service check 5021-0XX Horizontal white banding creates missing portion of printer) is not making proper contact with high voltage spring contact. Problem area 1 Transfer roller 2 Transfer roller clutch Action • Transfer roller bias pole is not damaged. • Replace faulty transfer roller. Replace faulty transfer roller clutch. Ensure spring contact on left side (looking from front of image. See "Clutch removal" on page 4-8. Remove and reinstall transfer roller. See "Transfer roller removal" on page 4-40. Diagnostic information 2-121
Service Manual
Page 266
See "Right cover removal" on page 4-6. 2. Remove transfer belt cleaning roller. See "Transfer belt cleaning roller removal" on page 4-22. 3. Remove right cover. 5021-0XX Cleaning roller clutch removal 1. Using a flat tip tool, pry and remove cleaning roller clutch gear from inside of printer. 4-36 Service Manual
See "Right cover removal" on page 4-6. 2. Remove transfer belt cleaning roller. See "Transfer belt cleaning roller removal" on page 4-22. 3. Remove right cover. 5021-0XX Cleaning roller clutch removal 1. Using a flat tip tool, pry and remove cleaning roller clutch gear from inside of printer. 4-36 Service Manual
Service Manual
Page 270
Remove clip from printer to the fuser clutch, transfer roller clutch, registration clutch, and the paper feed clutch. 1. See "Right cover removal" on page 4-22. 2. Slide clutch away from clutch (B). 4. Remove right cover. 5021-0XX Clutch removal Note: This procedure applies to remove. 4-40 Service Manual Disconnect clutch cable (A). 3.
Remove clip from printer to the fuser clutch, transfer roller clutch, registration clutch, and the paper feed clutch. 1. See "Right cover removal" on page 4-22. 2. Slide clutch away from clutch (B). 4. Remove right cover. 5021-0XX Clutch removal Note: This procedure applies to remove. 4-40 Service Manual Disconnect clutch cable (A). 3.
Service Manual
Page 271
...4-35. 2. Note: If you do not have to remove the fuser, transfer roller, registration, or paper feed clutch. Remove fuser clutch. Remove five screws (A) that secure main drive gear assembly to the waste ...clutches. 3. Remove paper feed clutch. See "Toner sensor (sender) removal" on page 4-38. See "Clutch removal" on page 4-40. 5. See "Clutch removal" on page 4-40. 4. Remove transfer roller clutch. See "Clutch removal" on page 4-40. 7. See "Clutch removal" on page 4-40. 6. A Repair information 4-41 Remove cleaning roller clutch. Remove registration clutch. The clutches...
...4-35. 2. Note: If you do not have to remove the fuser, transfer roller, registration, or paper feed clutch. Remove fuser clutch. Remove five screws (A) that secure main drive gear assembly to the waste ...clutches. 3. Remove paper feed clutch. See "Toner sensor (sender) removal" on page 4-38. See "Clutch removal" on page 4-40. 5. See "Clutch removal" on page 4-40. 4. Remove transfer roller clutch. See "Clutch removal" on page 4-40. 7. See "Clutch removal" on page 4-40. 6. A Repair information 4-41 Remove cleaning roller clutch. Remove registration clutch. The clutches...
Service Manual
Page 313
... to the main gear unit at the time of transfer belt cleaning. Locations and connectors 5-9 Solenoid/clutch locations Cleaning roller clutch Toner retract solenoid 5021-0XX Fuser clutch Transfer roller clutch Left side (shown with rotation of transfer belt. Developer clutches DCL (Y,M,C,K) Drives selected toner cartridge by coupling cleaning clutch to the main gear unit. This is done for...
... to the main gear unit at the time of transfer belt cleaning. Locations and connectors 5-9 Solenoid/clutch locations Cleaning roller clutch Toner retract solenoid 5021-0XX Fuser clutch Transfer roller clutch Left side (shown with rotation of transfer belt. Developer clutches DCL (Y,M,C,K) Drives selected toner cartridge by coupling cleaning clutch to the main gear unit. This is done for...
Service Manual
Page 314
5021-0XX Name Toner retract solenoid Transfer roller clutch Code Function DSL (Y,M,C,K) Places selected toner cartridge in development position during second transfer. TRCL Cam action clutch that rotates, allowing transfer roller to press against the back of paper causes toner to release from transfer belt onto paper during second transfer process. 5-10 Service Manual The transfer roller touching the back of paper during development phase.
5021-0XX Name Toner retract solenoid Transfer roller clutch Code Function DSL (Y,M,C,K) Places selected toner cartridge in development position during second transfer. TRCL Cam action clutch that rotates, allowing transfer roller to press against the back of paper causes toner to release from transfer belt onto paper during second transfer process. 5-10 Service Manual The transfer roller touching the back of paper during development phase.
Service Manual
Page 317
Symbol TH TNK TPD TTR TRCM Part name Themistor Toner key sensor Toner empty sensor Transfer cam clutch 5021-0XX Locations and connectors 5-13
Symbol TH TNK TPD TTR TRCM Part name Themistor Toner key sensor Toner empty sensor Transfer cam clutch 5021-0XX Locations and connectors 5-13
Service Manual
Page 342
... N/A 2 NC N/A Cleaning roller solenoid 3 +24V-1DF3 no number 4 FBCLON-N no number Fuser clutch 5 +24V-1DF3 no number 6 FUCLON-N no number Transfer roller clutch 7 +24V-1DF3 no number 8 TRSLON-N no number Registration clutch 9 +24V-1DF3 no number 10 RECLON-N no number Paper feed clutch 11 +24V-1DF3 no number 12 PKCLU1ON-N no number Waste toner sensor...
... N/A 2 NC N/A Cleaning roller solenoid 3 +24V-1DF3 no number 4 FBCLON-N no number Fuser clutch 5 +24V-1DF3 no number 6 FUCLON-N no number Transfer roller clutch 7 +24V-1DF3 no number 8 TRSLON-N no number Registration clutch 9 +24V-1DF3 no number 10 RECLON-N no number Paper feed clutch 11 +24V-1DF3 no number 12 PKCLU1ON-N no number Waste toner sensor...
Service Manual
Page 365
... 56P1622 56P1621 56P1623 56P1620 56P1624 56P1626 56P1619 56P1628 56P1629 56P1681 56P1631 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 14 56P1627 1 5021-0XX Description Gear assembly, main drive Clutch, fuser Packet, parts P/N 56P1662 Clutch, registration Clutch, transfer roller Clutch, paper feed Clutch, cleaning roller Waste toner feeder Motor assembly, main Drive assembly, developer Assembly, waste toner holder Assembly, interlock switch Sensor, toner, sender...
... 56P1622 56P1621 56P1623 56P1620 56P1624 56P1626 56P1619 56P1628 56P1629 56P1681 56P1631 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 14 56P1627 1 5021-0XX Description Gear assembly, main drive Clutch, fuser Packet, parts P/N 56P1662 Clutch, registration Clutch, transfer roller Clutch, paper feed Clutch, cleaning roller Waste toner feeder Motor assembly, main Drive assembly, developer Assembly, waste toner holder Assembly, interlock switch Sensor, toner, sender...
Service Manual
Page 377
... tests 3-7 printer setup 3-16 restore EP factory defaults 3-20 ROM memory test 3-10 serial number 3-17 serial wrap test 3-11 setting configuration ID 3-17 first transfer (drum) process 1-34 fusing process 1-46 fusing unit 1-44 I interface control 1-51 interface connection 1-51 interface type 1-51 L laser drive control circuit 1-50 locations 5-1 boards... and motors 5-7 high voltage supply board 5-18 I/O board 5-17 interlock switches 5-8 low voltage power supply board 5-18 options 5-3 printer 5-1 printer cables 5-19 sensors 5-4 solenoids and clutches 5-9 I-1
... tests 3-7 printer setup 3-16 restore EP factory defaults 3-20 ROM memory test 3-10 serial number 3-17 serial wrap test 3-11 setting configuration ID 3-17 first transfer (drum) process 1-34 fusing process 1-46 fusing unit 1-44 I interface control 1-51 interface connection 1-51 interface type 1-51 L laser drive control circuit 1-50 locations 5-1 boards... and motors 5-7 high voltage supply board 5-18 I/O board 5-17 interlock switches 5-8 low voltage power supply board 5-18 options 5-3 printer 5-1 printer cables 5-19 sensors 5-4 solenoids and clutches 5-9 I-1
Service Manual
Page 378
... belt cleaning process 1-36 belt discharge (erase lamp) process 1-35 charging process 1-29 developing process 1-32 exposing process 1-31 first transfer (drum) process 1-34 printer identification 1-17 printer setup parallel strobe adjustment 3-18 serial number 3-17 setting configuration ID 3-17 setting ...the page count 3-16 viewing page count 3-16 R removals bracket assembly 4-45 cleaning roller clutch 4-36 cleaning roller cover 4-6 covers 4-17 developer drive assembly 4-32 developer motor 4-31 duplex unit assembly 4-13 I-2 Service Manual engine...
... belt cleaning process 1-36 belt discharge (erase lamp) process 1-35 charging process 1-29 developing process 1-32 exposing process 1-31 first transfer (drum) process 1-34 printer identification 1-17 printer setup parallel strobe adjustment 3-18 serial number 3-17 setting configuration ID 3-17 setting ...the page count 3-16 viewing page count 3-16 R removals bracket assembly 4-45 cleaning roller clutch 4-36 cleaning roller cover 4-6 covers 4-17 developer drive assembly 4-32 developer motor 4-31 duplex unit assembly 4-13 I-2 Service Manual engine...
Service Manual
Page 382
...7-5 56P1617 Board, I/O 7-15 56P1618 Cover, I/O board 7-15 56P1619 Motor assembly, main 7-9 56P1620 Clutch, paper feed 7-9 56P1621 Clutch, registration 7-9 56P1622 Clutch, fuser 7-9 56P1623 Clutch, transfer roller 7-9 56P1624 Clutch, cleaning roller 7-9 56P1625 Gear assembly, main drive 7-9 56P1626 Waste toner feeder 7-9 56P1627 Motor, developer..., paper feed 7-11 56P1656 Pad, seperator 7-11 56P1657 Lamp, erase 7-7 56P1659 Rear cover assembly 7-5 56P1660 Transfer roller assembly 7-3 56P1661 Parts packet, harness 7-19 56P1662 Parts packet, screw 7-19 56P1663 Assembly, duplex unit...
...7-5 56P1617 Board, I/O 7-15 56P1618 Cover, I/O board 7-15 56P1619 Motor assembly, main 7-9 56P1620 Clutch, paper feed 7-9 56P1621 Clutch, registration 7-9 56P1622 Clutch, fuser 7-9 56P1623 Clutch, transfer roller 7-9 56P1624 Clutch, cleaning roller 7-9 56P1625 Gear assembly, main drive 7-9 56P1626 Waste toner feeder 7-9 56P1627 Motor, developer..., paper feed 7-11 56P1656 Pad, seperator 7-11 56P1657 Lamp, erase 7-7 56P1659 Rear cover assembly 7-5 56P1660 Transfer roller assembly 7-3 56P1661 Parts packet, harness 7-19 56P1662 Parts packet, screw 7-19 56P1663 Assembly, duplex unit...