Error Cause
SM 6-15 M085/M086
Trouble –
shooting
Step Cause Remedy
1 Fuser unit harness connection
failure
Check the harness connection
of the fuser unit and reconnect
it.
2 Fuser unit failure Replace the fuser unit.
3 LVPS PCB unit failure Replace the LVPS PCB unit.
4 Main PCB failure Replace the main PCB ASSY.
Error code 71/ 72
Error code 71
Print Unable 71
See Troubleshooting and routine maintenance chapter in User’s
Guide.
Laser unit Polygon mirror motor failure
(Cannot detect the period signal of the polygon mirror motor.)
Error code 72
Print Unable 72
See Troubleshooting and routine maintenance chapter in User’s
Guide.
BD beam detect sensor malfunction
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