Ricoh IS450S Service Manual page 86

22 December 1998
Paper Misfeed
Symptom:
The problem cannot be solved with the procedures in the user's manual.
Possible Causes:
• Damaged separation unit
• Defective pick-up clutch
• Defective ADU
• Defective SCU
• Defective feed sensor
Procedure:
Does the pick-up roller mechanism work?
Yes No
Is 24 volts supplied to the pick-up clutch?
Yes
Is there an open circuit in the clutch?
Yes
Replace the pick-up clutch.
Does the jam happen at the separation unit?
Yes No
Replace the pick-up roller.
Replace the separation unit.
No
Is the cable damaged?
Yes No
Replace the ADU.
Replace the cable.
No
Replace the SCU.
6-5
TROUBLESHOOTING PROCEDURES