Brother MFC-8535DN Service Manual

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Confidential
 Error code 1701
Detected a TT fan failure.
 Error code 1801
A communication error occurred between the ASIC and T2LT control PCB in the engine. (LT
only)
Error code 1802
A communication error occurred between the ASIC and T3LT control PCB ASSY in the
engine. (LT only)
 Error code 1808
A communication error occurred between the ASIC and TT control PCB in the engine.
Step Cause Remedy
1
Malfunction of the TT control
PCB
Install the latest main firmware.
2
Connection failure of the TT fan
harness
Reconnect the TT fan harness.
3
LT/TT connector failure
(machine side or TT side)
Replace the LT/TT connector of the machine
side or TT side.
4 TT fan failure Replace the TT fan.
5 TT control PCB failure Replace the TT control PCB.
6 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Malfunction of the LT control
PCB
Install the latest main firmware.
2
An LT/TT connector failure
(machine side or LT side)
Replace the appropriate LT/TT connector of the
machine side or LT side.
3 An LT control PCB failure Replace the appropriate LT control PCB.
4 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Malfunction of the TT control
PCB
Install the latest main firmware.
2
LT/TT connector failure
(machine or TT side)
Replace the LT/TT connector on the machine
side or TT side.
3 TT control PCB failure Replace the TT control PCB.
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