![background image](http://html.mh-extra.com/html/brother/hl-4140cn/hl-4140cn_service-manual_17203059.webp)
2-28
Confidential
■
Error code 27
PF drive motor error.
<User Check>
- Turn OFF the power switch, and turn it ON again after a while.
■
Error code 28
Drum drive motor error.
<User Check>
- If paper or any other foreign object is affixed to the exposure roller of the drum, remove it.
Print Unable 27
Turn the power off and then back on again.
Step
Cause
Remedy
1
Harness connection failure of
PF drive motor
Check the harness connection of the
PF drive motor
and reconnect it.
2
PF drive motor
failure
Replace the PF plate ASSY.
3
Engine PCB failure
Replace the engine PCB ASSY.
4
Low-voltage power supply PCB
failure
Replace the low-voltage power supply
PCB ASSY.
5
Main PCB failure
Replace the main PCB ASSY
Print Unable 28
Turn the power off and then back on again.
Step
Cause
Remedy
1
Harness connection failure of
drum drive motor
Check the harness connection of the
drum drive motor and reconnect it.
2
Drum drive motor failure
Replace the drum drive motor.
3
Engine PCB failure
Replace the engine PCB ASSY.
4
Low-voltage power supply PCB
failure
Replace the low-voltage power supply
PCB ASSY.
5
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 ...