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Confidential
3.11 Troubleshooting of the Control Panel
3.11.1 Nothing is displayed on the LCD
<User Check>
- Verify if the power switch is turned off.
- Check if the machine is in the Deep Sleep mode. (Touch panel model)
3.11.2 The control panel does not work
<User Check>
- Check whether the function lock is not set.
- Turn OFF and ON the power switch.
Step
Cause
Remedy
1
AC cord failure
Replace the AC cord.
2
Connection between main
PCB and panel PCB
Connect the connector between the main
PCB ASSY and panel PCB ASSY correctly.
3
Connection between main
PCB and low-voltage power
supply PCB
Connect the connector between the main
PCB ASSY and low-voltage power supply
PCB ASSY correctly.
4
Inlet Harness ASSY failure
Replace the inlet harness ASSY.
5
LCD or LCD unit failure
Replace the LCD or LCD unit.
6
Panel PCB failure
Replace the panel PCB ASSY.
7
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.
8
Low-voltage power supply
PCB failure
Replace the low-voltage power supply PCB
ASSY.
9
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Assembling failure of the
panel unit
Re-assemble the panel unit.
2
Connection between main
PCB and panel PCB
Connect the connector between the main
PCB ASSY and panel PCB ASSY correctly.
3
Rubber key failure
Replace with the normal rubber key.
4
Fine adjustment of touch
panel misalignment (for
models with a touch panel)
Perform the fine adjustment of touch panel.
(
5
Panel PCB failure
Replace the panel PCB ASSY.
6
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for 09055CDN
Page 22: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 37: ...Confidential CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 47: ...2 8 Confidential ADF part A4 model Fig 2 6 Left side Right side Document feed path Face up ...
Page 48: ...2 9 Confidential ADF part Legal model Fig 2 7 Left side Right side Document feed path Face up ...
Page 180: ...Confidential CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...
Page 211: ...3 28 Confidential 8 DISASSEMBLY FLOW Disassembly Re Assembly second ...
Page 212: ...3 29 Confidential Disassembly Re Assembly second ...
Page 416: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 436: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 445: ...5 7 Confidential Black and white scanning First side Front Fig 5 1 ...
Page 446: ...5 8 Confidential Black and white scanning Second side Back Fig 5 2 ...
Page 447: ...5 9 Confidential Color scanning First side Front Fig 5 3 ...
Page 448: ...5 10 Confidential Color scanning Second side Back Fig 5 4 ...
Page 475: ...5 37 Confidential Cover page sample Fig 5 18 End page sample Fig 5 19 ...
Page 482: ...5 44 Confidential Inter color position alignment adjustment chart Fig 5 23 ...
Page 491: ...5 53 Confidential Color test pattern Fig 5 28 MCYK Y C K M YCMK_ _A ...
Page 512: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 514: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram 1 3 ...
Page 515: ...6 2 Confidential High voltage Power Supply PCB Circuit Diagram 2 3 ...
Page 516: ...6 3 Confidential High voltage Power Supply PCB Circuit Diagram 3 3 ...
Page 517: ...6 4 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 518: ...6 5 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 519: ...6 6 Confidential NCU PCB Circuit Diagram U S A Canada ...
Page 520: ...6 7 Confidential NCU PCB Circuit Diagram Europe Oceania ...
Page 521: ...6 8 Confidential NCU PCB Circuit Diagram China Asia South Africa Gulf ...
Page 523: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 581: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 585: ...Confidential APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER ...
Page 589: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...