![background image](http://html.mh-extra.com/html/brother/hl-4140cn/hl-4140cn_service-manual_17203123.webp)
2-92
Confidential
■
Paper jam in the back cover and paper eject section (Error code 84, etc.)
■
Paper jam during duplex printing (Error code 57, etc.)
<User Check>
- Use the A4 or letter size recording paper.
Step
Cause
Remedy
1
Foreign object around paper eject
ASSY
Remove the foreign object.
2
Coming off of back flapper ASSY
Re-assemble the back flapper ASSY.
3
Paper eject actuator
malfunction
Re-assemble the paper eject actuator.
4
Harness connection failure of
paper eject motor
Check the harness connection of the
paper eject motor and reconnect it.
5
Paper eject sensor PCB ASSY
failure
Check the sensor performance following
the procedure described in
. If any problem occurs, replace the
fuser unit.
6
Paper eject motor failure
Replace the paper eject motor.
7
Paper eject ASSY failure
Replace the paper eject ASSY.
8
Engine PCB failure
Replace the engine PCB ASSY.
9
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Foreign object around paper
eject ASSY
Remove the foreign object.
2
Foreign object around duplex
feed ASSY
Remove the foreign object.
3
Foreign object around duplex
tray
Remove the foreign object.
4
Paper eject actuator
malfunction
Re-assemble the paper eject actuator.
5
Coming off of back flapper ASSY
Re-assemble the back flapper ASSY.
6
Harness connection failure of
paper eject motor
Check the harness connection of the
paper eject motor and reconnect it.
7
Duplex feed ASSY failure
Replace the duplex feed ASSY.
8
Duplex tray failure
Replace the duplex feed ASSY.
9
Paper eject motor failure
Replace the paper eject motor.
10
Paper eject ASSY failure
Replace the paper eject ASSY.
11
Engine PCB failure
Replace the engine PCB ASSY.
12
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for HL-4140CN
Page 19: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 29: ...Confidential CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 145: ...Confidential CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...
Page 169: ...3 21 Confidential 8 DISASSEMBLY FLOW Disassembly Re Assembly second ...
Page 296: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 311: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 336: ...5 23 Confidential Inter color position alignment adjustment chart Fig 5 8 ...
Page 343: ...5 30 Confidential Fig 5 11 ...
Page 345: ...5 32 Confidential Fig 5 12 First side Second side ...
Page 347: ...5 34 Confidential Color test pattern Fig 5 13 MCYK Y C K M YCMK_ _A ...
Page 354: ...5 41 Confidential Maintenance information Fig 5 14 ...
Page 382: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 384: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram 1 3 ...
Page 385: ...6 2 Confidential High voltage Power Supply PCB Circuit Diagram 2 3 ...
Page 386: ...6 3 Confidential High voltage Power Supply PCB Circuit Diagram 3 3 ...
Page 387: ...6 4 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 388: ...6 5 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 389: ...6 6 Confidential 2 WIRING DIAGRAM Wiring Diagram ...
Page 390: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 424: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 428: ...Confidential APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER ...
Page 432: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...