Brother DCP-L5500D Service Manual page 82

 Error code 6001
The front cover sensor detected that the front cover was open.
<User Check>
• Close the front cover.
Step
Connection failure of the front
1
cover sensor harness
Connection failure of the relay
2
front harness
Front cover sensor attachment
3
failure
4 Front cover failure
5 Front cover sensor failure
6 Relay front PCB failure
7 Main PCB failure
 Error code 6004
The eject sensor detected that the fuser cover was open.
<User Check>
• Close the fuser cover.
Step
Eject actuator coming off or
1 caught in some sections of the
machine
2 Fuser cover attachment failure
Connection failure of the eject
3
sensor harness
4 Eject sensor PCB failure
5 Main PCB failure
 Error code 6101
The toner amount detection sensor detected that the toner cartridge was not set.
<User Check>
• Set the toner cartridge correctly.
Step
Toner amount detection sensor
1
PCB (light reception) failure
2 Relay front PCB failure
3 Main PCB failure
Cause
Reconnect the front cover sensor harness.
Reconnect the relay front harness.
Reattach the front cover sensor.
Replace the front cover.
Replace the relay front PCB ASSY.
Replace the relay front PCB ASSY.
Replace the main PCB ASSY.
Cause
Reattach the eject actuator.
Reattach the fuser cover.
Reconnect the eject sensor harness.
Replace the eject sensor PCB ASSY.
Replace the main PCB ASSY.
Cause
Replace the toner amount detection sensor
PCB ASSY (light reception).
Replace the relay front PCB ASSY.
Replace the main PCB ASSY.
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Remedy
Remedy
Remedy
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