2-80
Confidential
■
Error code EB
Read error in EEPROM of the laser unit.
■
Error code EC
Fuser fan error.
■
Error code ED
Communication with the wireless LAN PCB cannot be established upon startup of the power
supply. (Wireless LAN model only)
Print Unable EB
Turn the power off and then back on again.
Step
Cause
Remedy
1
Harness connection failure
between laser unit and main
PCB ASSY
Check the harness connection between
the laser unit and main PCB ASSY, and
reconnect it.
2
Laser unit failure
Replace the laser unit.
3
Engine PCB failure
Replace the engine PCB ASSY.
4
Main PCB failure
Replace the main PCB ASSY.
Print Unable EC
Turn the power off and then back on again.
Step
Cause
Remedy
1
Harness connection failure of
fuser fan
Check the harness connection of the
fuser fan and reconnect it.
2
Fuser fan failure
Replace the fuser fan.
3
High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
4
Main PCB failure
Replace the main PCB ASSY.
Print Unable ED
Turn the power off and then back on again.
Step
Cause
Remedy
1
Harness connection failure of
wireless LAN PCB
Check the harness connection of the
wireless LAN PCB and reconnect it.
2
Wireless LAN PCB failure
Replace the wireless LAN PCB.
3
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 ...