Brother MFC-8535DN Service Manual

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Confidential
 Error code 8903
The back cover/duplex tray sensor detected that the cover was open when duplex printing is
started. (Before registering printing data to engine)
Error code 8904
The back cover/duplex tray sensor detected that the cover was open during duplex printing.
(After registering printing data to engine)
 Error code 8A01
The registration rear sensor detected that the paper fed was smaller or larger than the
specified size in duplex printing mode.
<User Check>
• Close the back cover correctly.
• Attach the duplex tray correctly.
Step Cause Remedy
1
Back cover/duplex tray sensor
attachment failure
Reattach the back cover/duplex tray sensor.
2
Connection failure of the back
cover/duplex tray sensor
harness
Reconnect the back cover/duplex tray sensor
harness.
3 Damaged back cover Replace the back cover.
4 Damaged duplex tray Replace the duplex tray.
5 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Use specified paper.
Step Cause Remedy
1
Registration rear actuator
caught in some sections of the
machine
Reattach the registration rear actuator.
2
Registration rear sensor failure Replace the registration front/rear sensor PCB
ASSY.
3
high-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
4 Main PCB failure Replace the main PCB ASSY.

Brother MFC-8535DN Specifications

General

Brand	Brother
Model	MFC-8535DN
Category	All in One Printer
Language	English