Error code
Description
377.51
No encoder feedback detected from the output
option 1/mailbox main/interface motor.
377.52
Motor stop error—the output option 1/mailbox
main/interface motor kept on running some time
after the motor was commanded to stop.
378.51
No encoder feedback detected from the output
option 2/mailbox main/interface motor.
378.52
Motor stop error—the output option 2/mailbox
main/interface motor kept on running some time
after the motor was commanded to stop.
379.51
No encoder feedback detected from the output
option 3/mailbox main/interface motor.
379.52
Motor stop error—the output option 3/mailbox
main/interface motor kept on running some time
after the motor was commanded to stop.
381.51
No encoder feedback detected from the output
option 1/finisher/offset stacker ejector motor.
381.52
Motor stop error—the output option
1/finisher/offset stacker ejector motor kept on
running some time after the motor was commanded
to stop.
381.54
No encoder feedback detected from the output
option 1/finisher/offset stacker main/interface
motor.
381.55
Motor stop error—the output option
1/finisher/offset stacker main/interface motor kept
on running some time after the motor was
commanded to stop.
381.56
The output option 1/finisher/offset stacker
main/interface motor went over the normal speed
382.51
No encoder feedback detected from the output
option 2/finisher/offset stacker ejector motor.
382.52
Motor stop error—the output option
2/finisher/offset stacker ejector motor kept on
running some time after the motor was commanded
to stop.
382.54
No encoder feedback detected from the output
option 2/finisher/offset stacker main/interface
motor.
382.55
Motor stop error—the output option
2/finisher/offset stacker main/interface motor kept
on running some time after the motor was
commanded to stop.
Action
1
POR the machine.
2
Reseat the output option on the printer.
3
Open the rear door and clear obstructions along
the paper path.
If the problem remains, then go to
service check" on page
Diagnostic information
127
4063
"Mailbox failure
140.