2-42
Confidential
Error code 7600
The center thermistor of the fuser unit detected a temperature rise greater than the specified
value within the specified time.
Error code 7800
The center thermistor of the fuser unit detected a temperature fall greater than the specified
value within the specified time.
Error code 7A00
Cannot detect the synchronized signal of the main motor. The speed of the main motor does
not stabilize within the specified time.
Fuser Error / Print Unable 76
Turn the power off and then back on again.
Fuser Error / Print Unable 78
Turn the power off and then back on again.
<User Check>
• Turn OFF the power switch. After several seconds, turn ON the power again and check
that this error is reset.
Step
Cause
Remedy
1
Connection failure of the center
or side thermistor harness of
the fuser unit
Check the connection of the center or side
thermistor harness of the fuser unit, and
reconnect it if necessary.
2
Connection failure of the heater
harness of the fuser unit
Check the connection of the heater harness of
the fuser unit, and reconnect it if necessary.
3
Connection failure of the eject
sensor PCB harness
Check the connection of the eject sensor PCB
harness, and reconnect it if necessary.
4
Connection failure of the low-
voltage power supply PCB
harness
Check the connection of the low-voltage power
supply PCB harness, and reconnect it if
necessary.
5
Eject sensor PCB failure
Refer to
"1.3.10 Check sensor operation
(function code: 32)" in Chapter 5
to check the
sensor operation. If the sensor operation is
faulty, replace the eject sensor PCB ASSY.
6
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
7
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 harness
Check the connection of the main motor
harness, and reconnect it if necessary.
2
Main motor failure
Replace the main motor ASSY.
3
Main PCB failure
Replace the main PCB ASSY.
Содержание MFC-8510DN
Страница 27: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Страница 43: ...Confidential CHAPTER 2 TROUBLESHOOTING ...
Страница 53: ...2 8 Confidential 2 2 2 Scanning Legal model Fig 2 5 A4 model Fig 2 6 Document feed path Document feed path ...
Страница 143: ...Confidential CHAPTER 3 DISASSEMBLY REASSEMBLY ...
Страница 154: ...3 8 Confidential Develop joint gear 37 Fig 3 4 Document scanner unit A4 model Fig 3 5 Legal model Fig 3 6 ...
Страница 155: ...3 9 Confidential Hinge ASSY L Fig 3 7 Hinge R Legal model only Fig 3 8 ...
Страница 165: ...3 19 Confidential 11 Main frame R Harness colors may be changed for any reason NCU earth harness BR Guides ...
Страница 201: ...3 55 Confidential 13 Remove the LCD and touch panel ASSY from the panel cover Fig 3 70 Touch panel ASSY Panel cover LCD ...
Страница 277: ...Confidential CHAPTER 4 ADJUSTING AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 293: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Страница 300: ...5 5 Confidential Fig 5 1 ...
Страница 325: ...5 30 Confidential Fig 5 14 ...
Страница 327: ...5 32 Confidential Fig 5 15 ...
Страница 346: ...Confidential CHAPTER 6 WIRING DIAGRAM ...
Страница 348: ...6 1 Confidential 1 WIRING DIAGRAM Wiring diagram ...
Страница 349: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Страница 368: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Страница 372: ...Confidential APPENDIX 3 INSTALLING MAINTENANCE DRIVER ...