Brother DCP8112DN

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.