Printer - Ricoh FACSIMILE FAX77 Field Service Manual

2. Printer

Symptom
Non-feed 1. Remove any debris from inside the printer.
2. Is the upper unit shut properly?
3. Check that the following connections are not loose: PSU CN52 - FCU CN12,
FCU CN9 - Printer cover switch (SB-10)
Does the FCU receive + 24VA from the PSU at CN12-8 when a document is
placed in the feeder?
Y N
Is SB-10 working? If the upper unit is closed, is FCU CN9-2 low?
Y
Is FCU CN12-2 high if there is a document in the feeder?
Y
Replace the PSU.
Action
N
Replace SB-10 and/or the actuator mechanism.
N
Replace the FCU.
5-10