Brother MFC8912DW
Troubleshooting. 8. Troubleshooting for Fuser Unit Problems
8.1 Fuser unit failure
Step | Cause | Remedy |
---|---|---|
1 | Harness connection failure between fuser unit and eject sensor PCB | Check the harness connection between the fuser unit and the eject sensor PCB, and reconnect it if necessary. |
2 | Harness connection failure between fuser unit and low-voltage power supply PCB | Check the harness connection between the fuser unit and the low-voltage power supply PCB, and reconnect it if necessary. |
3 | Connection failure of the eject sensor PCB harness | Check the connection of the eject sensor harness, and reconnect it if necessary. |
4 | Eject sensor PCB failure | Refer to "Check sensor operation (function code: 32)" to check the sensor operation. If the sensor operation is faulty, replace the eject sensor PCB ASSY. |
5 | Low-voltage power supply PCB failure | Replace the low-voltage power supply PCB ASSY. |
6 | Fuser unit failure | Replace the fuser unit. |
7 | Main PCB failure | Replace the main PCB ASSY. |
CAUTION:
• Turn the power switch OFF and then ON again. Leave the machine for ten minutes. This problem may then be cleared.