2-96
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 DCP-9055CDN
Page 21: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 36: ...Confidential CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 46: ...2 8 Confidential ADF part A4 model Fig 2 6 Left side Right side Document feed path Face up ...
Page 47: ...2 9 Confidential ADF part Legal model Fig 2 7 Left side Right side Document feed path Face up ...
Page 178: ...Confidential CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...
Page 206: ...3 25 Confidential 8 DISASSEMBLY FLOW Disassembly Re Assembly second ...
Page 207: ...3 26 Confidential Disassembly Re Assembly second 5 ...
Page 381: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 397: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 405: ...5 6 Confidential Black and white scanning First side Fig 5 1 ...
Page 406: ...5 7 Confidential Black and white scanning Second side Fig 5 2 ...
Page 407: ...5 8 Confidential Color scanning First side Fig 5 3 ...
Page 408: ...5 9 Confidential Color scanning Second side Fig 5 4 ...
Page 433: ...5 34 Confidential Cover page sample Fig 5 17 End page sample Fig 5 18 ...
Page 440: ...5 41 Confidential Inter color position alignment adjustment chart Fig 5 22 ...
Page 447: ...5 48 Confidential Fig 5 25 ...
Page 450: ...5 51 Confidential Color test pattern Fig 5 27 MCYK Y C K M YCMK_ _A ...
Page 470: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 472: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram 1 3 ...
Page 473: ...6 2 Confidential High voltage Power Supply PCB Circuit Diagram 2 3 ...
Page 474: ...6 3 Confidential High voltage Power Supply PCB Circuit Diagram 3 3 ...
Page 475: ...6 4 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 476: ...6 5 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 477: ...6 6 Confidential NCU PCB Circuit Diagram U S A Canada ...
Page 478: ...6 7 Confidential NCU PCB Circuit Diagram Europe Oceania ...
Page 479: ...6 8 Confidential NCU PCB Circuit Diagram China Asia South Africa Gulf ...
Page 481: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 523: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 527: ...Confidential APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER ...
Page 531: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...