Troubleshooting Procedures; User-Visible Error Conditions - Ricoh IS450S Service Manual

22 December 1998

6.4 TROUBLESHOOTING PROCEDURES

There are two types of troubleshooting procedure.
• For user-visible error conditions that the user could not clear up
• For technician level error conditions

6.4.1 USER-VISIBLE ERROR CONDITIONS

ADF Interlock Switch Open
Symptom:
The problem cannot be solved with the procedures in the user's manual.
Possible Causes:
• Defective ADF interlock switch
• Damaged cable between the ADF interlock switch and the PSU
Procedure:
Does 24 volts come to the ADF cover interlock switch?
Yes No
Is the cable damaged?
Yes
Replace the cable.
Replace the ADF interlock switch.
No
Replace the PSU.
6-3
TROUBLESHOOTING PROCEDURES