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Confidential
3.6.2 Troubleshooting according to image defect
Image defect related problems are user recoverable if following the User Check items. If the
same problem occurs, follow each procedure in the order of the number described in the
Step column in the tables below.
Light
<User Check>
- Check the machine's environment. High temperature and high
humidity or low temperature and low humidity conditions can cause
this problem.
- If the whole page is light, toner save mode may be ON. Turn OFF
the toner save mode.
- Adjust the density by the Density Adjustment.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Replacing the used toner cartridge with a relatively new used toner
cartridge can cause this problem.
- Check that condensation has not formed in the machine or the
installation location is appropriate.
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
Developing bias failure
Reset the counter for the developer roller.
3
High voltage power supply PCB
failure
Replace the high voltage power supply PCB
ASSY.
4
Laser unit failure
Replace the laser unit.
5
Main PCB failure
Replace the main PCB ASSY.
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 ...