2-28
Service Manual
7541-03x
MPF service check
3
Relay sensor
Paper feed clutch
• Bypass the turn guide door open sensor*.
• Turn the printer on while holding down the paper relay sensor.
- If the operator panel does not display “Paper Jam”, check
for a dirty paper relay sensor.
- If the paper relay sensor is clean, or the actuator for the
paper relay sensor is broken, replace the sensor.
If the sensors are replaced and problem remains, replace the
printer controller board.
• Check the clutch cables for proper connection to CN8 on the
engine board, and CN20 on the printer controller board.
• Check the resistance of the clutch using a multi meter. The
resistance should measure 192 ohms.
If the clutch shows a significantly higher reading, replace the
clutch.
• If you replace the paperfeed, or transport clutches and the
problem remains, replace the engine board. If replacing the
registration clutch and the problem remains, replace the printer
controller board.
FRU
Action
1
MPF tray paper guides
Check the guides to ensure they are not binding. Also, check the
guides to ensure they are correctly adjusted for the paper in the
tray.
2
MPF roll cover
Make sure the MPF roll cover is properly installed, and not
obstructing the paperpath. Check for broken tabs, and replace the
cover if any tabs are missing.
3
MPF roll
MPF pad
Check for wear or damage to feed rollers and pad.
Check for dirt on the roll and pad. Clean them with a lint free damp
cloth.
4
MPF clutch
Check the MPF clutch cable for proper connection to the clutch
and CN 28 on the engine board.
5
MPF paper empty lever
(actuator)
MPF sensor
Make sure the MPF paper empty lever moves smoothly, and
doesn’t bind. Replace the lever if it is broken.
Check the MPF sensor cable for proper connection to the sensor
and CN14 on the engine board. Also check the cable for continuity.
6
Engine board
If replacing the MPF clutch and sensor don’t resolve and MPF feed
issues, replace the engine board.
FRU
Action
Summary of Contents for X925
Page 14: ...xiv Service Manual 7541 03x ...
Page 182: ...3 50 Service Manual 7541 03x ...
Page 228: ...4 46 Service Manual 7541 03x 5 Remove the two screws C 6 Remove the two screws D ...
Page 229: ...Repair information 4 47 7541 03x 7 Remove the one screw E 8 Remove the four screws F on top ...
Page 230: ...4 48 Service Manual 7541 03x 9 Remove the two screws G on top 10 Remove the two screws H ...
Page 231: ...Repair information 4 49 7541 03x 11 Remove one screw I 12 Remove the screw J ...
Page 285: ...Repair information 4 103 7541 03x 4 Disconnect the fan cable B from the MDCONT engine board ...
Page 300: ...4 118 Service Manual 7541 03x 5 Remove the screw C 6 Remove the screw D ...
Page 301: ...Repair information 4 119 7541 03x 7 Remove the screw E ...
Page 358: ...4 176 Service Manual 7541 03x 6 Lift and pull the tray away from the printer ...
Page 368: ...4 186 Service Manual 7541 03x 5 Take the MPF shaft out 6 Remove the MPF roll ...
Page 392: ...5 4 Service Manual 7541 03x Rip Board connectors ...
Page 398: ...5 10 Service Manual 7541 03x Printhead controller connectors ...
Page 407: ...Locations 5 19 7541 03x Engine board connectors ...
Page 426: ...5 38 Service Manual 7541 03x ...
Page 428: ...6 2 Service Manual 7541 03x ...
Page 430: ...7 2 Service Manual 7541 03x Assembly 1 Covers ...
Page 432: ...7 4 Service Manual 7541 03x Assembly 2 Flatbed and ADF ...
Page 434: ...7 6 Service Manual 7541 03x Assembly 3 Flatbed ...
Page 436: ...7 8 Service Manual 7541 03x Assembly 4 ADF 1 ...
Page 438: ...7 10 Service Manual 7541 03x Assembly 5 ADF 2 ...
Page 440: ...7 12 Service Manual 7541 03x Assembly 6 Duplex components 1 ...
Page 442: ...7 14 Service Manual 7541 03x Assembly 7 Duplex components 2 ...
Page 444: ...7 16 Service Manual 7541 03x Assembly 8 Paper exit ...
Page 446: ...7 18 Service Manual 7541 03x Assembly 9 Base 1 ...
Page 448: ...7 20 Service Manual 7541 03x Assembly 10 Base 2 ...
Page 450: ...7 22 Service Manual 7541 03x Assembly 11 Base 3 ...
Page 452: ...7 24 Service Manual 7541 03x Assembly 12 Paper feed ...
Page 454: ...7 26 Service Manual 7541 03x Assembly 13 Electrical 1 ...
Page 456: ...7 28 Service Manual 7541 03x Assembly 14 Electrical 2 ...
Page 458: ...7 30 Service Manual 7541 03x Assembly 15 Upper assembly ...
Page 460: ...7 32 Service Manual 7541 03x Assembly 16 Printhead controller board cables ...
Page 462: ...7 34 Service Manual 7541 03x Assembly 17 Paper trays ...
Page 464: ...7 36 Service Manual 7541 03x Assembly 18 Fuser ...
Page 466: ...7 38 Service Manual 7541 03x Assembly 19 550 sheet option feeder covers ...
Page 468: ...7 40 Service Manual 7541 03x Assembly 20 550 sheet option feeder base ...
Page 470: ...7 42 Service Manual 7541 03x Assembly 21 550 sheet option feeder paper feed ...
Page 472: ...7 44 Service Manual 7541 03x Assembly 22 550 sheet option feeder tray ...
Page 488: ...I 14 Service Manual 7541 03x ...