2-58 Service Manual
5056-XXX
Paper has entered the duplex unit (area D).
Paper jammed in finisher (area G).
FRU Action
1 Feed rollers
Belts
Check for wear or damage to feed rollers and belts.
2
Duplex unit Be sure the duplex unit is properly installed and that all
connections are correct.
3
• Duplex stopper motor
• Side fence stepper
motor
Be sure the stepper motor turns freely with no binding.
Check for wear or damage to the associated gears. Replace as
necessary.
4
• Feed roller solenoid
assembly
• Paper re-feed solenoid
assembly
Check for proper operation of the solenoid and linkage. Replace as
necessary.
5
Paper tray Check to see if the paper edge guides have shifted. If so, re-time
by removing the screw and gear from the bottom of the tray and
pushing the paper edge guides up against the paper lift plate.
Reinstall the screw and gear.
FRU Action
1 • Registration roller
• Paper exit rollers
• Registration sensor
• Registration clutch
• Punch clutch punch unit
Check finisher to printer alignment. Go to “Aligning the finisher
and printer” on page 3-59.
Check all belts for wear or damage. Check the registration roller for
wear or damage.
Check for obstructions.
Check the registration sensor by running the finisher sensor tests
in diagnostic mode.
Check the registration clutch by running the staple test or hole
punch test in diagnostic mode. Replace parts as necessary.
2
• Paper feed motor
• Finisher control board
Check the paper feed motors by running the staple test or hole
punch test in diagnostic mode.
If the paper feed motor has been replaced, replace the finisher
control board.
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