Brother FAX-2840 Service Manual page 77

Error code 85 to 87
These errors do not usually occur in the normal use. The conceivable causes are noise
around the installation site, fluctuation of the power supply voltage, and failures in the
software.
---
An unidentified error occurred.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Error code 88
Jam Inside
Open the Front Cover, pull out the Drum Unit completely and remove the jammed
paper.
The eject sensor does not detect paper pass after the registration rear sensor detected the
end of paper pass.
<User Check>
• Check that the paper is not jammed. If jammed, remove it.
Step
Connection failure of the eject
1
sensor PCB ASSY harness
Paper eject actuator catching
2
on some position
3 Eject sensor PCB failure
4 Fuser unit gear damaged
5 Main PCB failure
Error code 89
This error does not usually occur in the normal use. The conceivable causes are noise
around the installation site, fluctuation of the power supply voltage, and failures in the
software.
---
An unidentified error occurred.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Cause
Replace the main PCB ASSY.
Cause
Reconnect the eject sensor PCB ASSY
harness.
Correct the position of the paper eject actuator.
Replace the eject sensor PCB ASSY.
Replace the fuser unit.
Replace the main PCB ASSY.
Cause
Replace the main PCB ASSY.
2-40
Remedy
Remedy
Remedy
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