2-37
Confidential
Error code 7B and 7C
These errors do not usually occur in the normal use. The conceivable causes are noise
around the installation site, fluctuation of the power supply voltage, and failures in the
software.
An unidentified error occurred.
Error code 7D
Detected discharge that may be attributable to dirty corona wire on the drum unit.
Error code 7E
This error does not usually occur in the normal use. The conceivable causes are noise
around the installation site, fluctuation of the power supply voltage, and failures in the
software.
An unidentified error occurred.
---
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
Cause
Remedy
1
Main PCB failure
Replace the main PCB ASSY.
Drum Error
Open the Front Cover and slide the blue tab across the Drum Unit several times.
<User Check>
• Clean the corona wire of the drum unit.
• Turn OFF the power switch, and turn it ON again after a while.
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
High voltage power supply PCB
failure
Replace the high voltage power supply PCB
ASSY.
3
Main PCB failure
Replace the main PCB ASSY.
---
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
Cause
Remedy
1
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for FAX-2950
Page 20: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 35: ...Confidential CHAPTER 2 TROUBLESHOOTING ...
Page 45: ...2 8 Confidential 2 2 2 Scanning part Fig 2 4 ...
Page 122: ...Confidential CHAPTER 3 DISASSEMBLY REASSEMBLY ...
Page 130: ...3 6 Confidential 5 LUBRICATION There are no applicable parts for lubrication ...
Page 136: ...3 12 Confidential 3 New toner sensor PCB ASSY New toner sensor PCB ASSY Main PCB ASSY Guide ...
Page 204: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT ...
Page 217: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 224: ...5 5 Confidential Black and white color scanning Fig 5 1 ...
Page 263: ...Confidential CHAPTER 6 WIRING DIAGRAM ...
Page 266: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 267: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE CONTENTS 1 PERIODICAL REPLACEMENT PARTS 7 1 ...
Page 269: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 273: ...Confidential APPENDIX 3 INSTALLING MAINTENANCE DRIVER ...
Page 275: ...Confidential APPENDIX 4 HOW TO MAKE PROTECTIVE MATERIAL FOR DRUM UNIT ...