Brother MFC-8510DN, Service Manual

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Confidential
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Error codes 8100 and 8200
These errors do not usually occur during normal use. The possible causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
An unidentified error occurred.
„ Error code 8300
Detected discharge when the number of rotations of the drum has exceeded twice the life
limit.
„
Error code 8400
The eject sensor remains ON (paper pass detected) for more than the specified time even
after the registration rear sensor detected the end of paper pass.
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Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
Drum Stop
Replace the Drum Unit. Refer to the instructions in the carton of the new drum.
<User Check>
• Replace the drum unit with a new one, and reset the drum counter.
Step Cause Remedy
1
High-voltage power supply PCB
failure Replace the high-voltage power supply PCB
ASSY.
2 Main PCB failure Replace the main PCB ASSY.
Jam Rear
Open the Back Cover and remove the jammed paper, then press Start.
<User Check>
• Remove the paper jammed in the rear section of the machine.
Step Cause Remedy
1
Foreign object in the rear of the
machine Remove the foreign object.
2
Eject actuator caught in some
sections of the machine Reattach the eject actuator.
3
Eject sensor failure Refer to "1.3.10 Check sensor operation
(function code: 32)" in Chapter 5 to check the
sensor operation. If the sensor operation is
faulty, replace the eject sensor PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
CAUTION:
• Do not use a sharp tool such as tweezers or screwdriver to remove the jammed paper.