Brother MFC7880DN

User Check

• Check that the paper is set into the deepest part of the manual feed slot.
• Check that multiple sheets of paper are not set in the manual feed slot.
• Check that the thickness of the paper is 60 to 163 g/m2.
• Check that the paper tray is not set as the pick-up tray.
• Check that the paper tray is closed correctly.

Step	Cause	Remedy
1	Connection failure of the main motor flat cable	Reconnect the main motor flat cable.
2	Connection failure of the registration clutch harness	Reconnect the registration clutch harness.
3	Registration front actuator coming off	Reattach the registration front actuator.
4	Connection failure of the registration front sensor PCB harness	Reconnect the registration front sensor PCB harness.
5	HVPS flat cable breakage	Replace the HVPS flat cable.
6	Registration clutch failure	Replace the registration clutch.
7	Registration front sensor failure	Replace the registration front/rear actuator holder ASSY.
8	Connection failure of the HVPS flat cable	Reconnect the HVPS flat cable.
9	Main motor failure	Replace the main motor.
10	Damaged fuser unit	Replace the fuser unit.
11	High-voltage power supply PCB failure	Replace the high-voltage power supply PCB ASSY.
12	Main PCB failure	Replace the main PCB ASSY.