2-69
Confidential
Image distortion
All black
Dirt on the back of paper
Step
Cause
Remedy
1
Laser unit attachment failure
Attach the laser unit correctly and secure the screw.
2
Laser unit failure
Replace the laser unit.
3
Main PCB failure
Replace the main PCB ASSY.
<User Check>
- Clean the corona wire of the drum unit.
- Replace the drum unit with a new one.
Step
Cause
Remedy
1
Dirt on electrodes of the drum unit
and those of the machine
Clean the electrodes of the drum unit and
those of the machine. (Refer to
and
.)
2
Connection failure of the scanner
harness of the laser unit
Reconnect the scanner harness of the laser
unit.
3
Earth plate connection failure
Reconnect the earth plate between the laser
unit and develop drive sub ASSY securely,
and secure the screw.
4
High voltage power supply PCB
failure
Replace the high voltage power supply PCB
ASSY.
5
Laser unit failure
Replace the laser unit.
6
Main PCB failure
Replace the main PCB ASSY.
<User Check>
- This problem may disappear after printing
approximately 10 pages of completely blank sheets.
Step
Cause
Remedy
1
Dirt on the fuser unit
Replace the fuser unit.
2
Dirt in the paper feed system
Wipe off the dirt.
Содержание FAX-2950
Страница 20: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Страница 35: ...Confidential CHAPTER 2 TROUBLESHOOTING ...
Страница 45: ...2 8 Confidential 2 2 2 Scanning part Fig 2 4 ...
Страница 122: ...Confidential CHAPTER 3 DISASSEMBLY REASSEMBLY ...
Страница 130: ...3 6 Confidential 5 LUBRICATION There are no applicable parts for lubrication ...
Страница 136: ...3 12 Confidential 3 New toner sensor PCB ASSY New toner sensor PCB ASSY Main PCB ASSY Guide ...
Страница 140: ...3 16 Confidential 8 Main fan High voltage power supply PCB ASSY Guide Main fan Tape Hole of guide Hole of guide ...
Страница 143: ...3 19 Confidential 12 Speaker unit Guide Speaker harness Guide Guides Guides Speaker unit Main PCB ASSY ...
Страница 153: ...3 29 Confidential 9 3 Cord hook 1 Turn the two cord hooks and then remove them from the machine Fig 3 12 Cord hooks ...
Страница 204: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 217: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Страница 224: ...5 5 Confidential Black and white color scanning Fig 5 1 ...
Страница 263: ...Confidential CHAPTER 6 WIRING DIAGRAM ...
Страница 266: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Страница 267: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE CONTENTS 1 PERIODICAL REPLACEMENT PARTS 7 1 ...
Страница 268: ...7 1 Confidential 1 PERIODICAL REPLACEMENT PARTS There are no parts to be replaced periodically ...
Страница 269: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Страница 273: ...Confidential APPENDIX 3 INSTALLING MAINTENANCE DRIVER ...
Страница 275: ...Confidential APPENDIX 4 HOW TO MAKE PROTECTIVE MATERIAL FOR DRUM UNIT ...