Brother MFC-8370DN - Paper Jam Inside the Machine; Incorrect Paper Size in Duplex Printing

3-25
Confidential
■ Error code 88
Paper jam inside the machine
■ Error code 89
Incorrect paper size in duplex printing
Jam Inside
Open the Front Cover, pull out the Drum Unit completely and remove
the jammed paper.
<User Check>
• Check if the paper is jammed around the removed drum unit. If jammed, remove it.
Step Cause Remedy
1
Harness connection failure of high
voltage power supply PCB ASSY.
Check the harness connection of the high
voltage power supply PCB ASSY and
reconnect it.
2
Registration rear actuator catching
on some position
Correct catching of the registration rear
actuator.
3
Registration rear sensor failure Check the sensor performance following
the procedure described in “Maintenance
mode 32”. If any problem occurs, replace
the high voltage power supply PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Check Paper size
Reload correct paper.
<User Check>
• Use the A4 size or letter size paper.
Step Cause Remedy
1
Registration rear sensor failure Check the sensor performance following
the procedure described in “Maintenance
mode 32”. If any problem occurs, replace
the high voltage power supply PCB ASSY.
2 Main PCB failure Replace the main PCB ASSY.