2-36
Confidential
Error code 75
The internal temperature thermistor detected a temperature higher than the specified value.
Error code 76
The center thermistor of the fuser unit detected a temperature rise greater than the specified
value within the specified time.
Error code 78
The center thermistor of the fuser unit detected a temperature fall greater than the specified
value within the specified time.
Error code 7A
Cannot detect the synchronized signal of the main motor. The speed of the main motor does
not stabilize within the specified time.
Cooling Down
Wait for a while
<User Check>
• Leave the machine for a while as the power remains ON.
Step
Cause
Remedy
1
Internal temperature thermistor
failure
Replace the internal temperature thermistor.
2
Main PCB failure
Replace the main PCB ASSY.
Print Unable 76
Turn the power off and then back on again.
Print Unable 78
Turn the power off and then back on again.
Step
Cause
Remedy
1
Fuser unit failure
Replace the fuser unit.
2
Low voltage power supply PCB
failure
Replace the low voltage power supply PCB
ASSY.
3
Eject sensor PCB failure
Replace the eject sensor PCB ASSY.
4
Main PCB failure
Replace the main PCB ASSY.
Print Unable 7A
Turn the power off and then back on again.
Step
Cause
Remedy
1
Connection failure of the main
motor flat cable
Reconnect the main motor flat cable.
2
Main motor failure
Replace the main motor.
3
Low voltage power supply PCB
failure
Replace the low voltage power supply PCB
ASSY.
4
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 ...