Ricoh FACSIMILE FAX77 Field Service Manual page 151

Symptom
Abnormal noise
Double feed
Dirty document
Second page not fed 1. Check that the following connectors are not loose: FCU CN15 - OPU CN1, OPU
in
4. Check connectors FCU CN15 - OPU CN1, OPU CN3 - (SB-2)
Does the OPU receive signals from SB-2 at CN3-1?
Y N
Replace SB-2.
Replace the OPU or the FCU.
1. Check that the machine is assembled properly.
2. Are the springs and clutches in the paper feed/pick-up mechanism clean?
3. Replace the tx motor or the FCU.
1. Clean, lubricate, or replace the separation roller.
2. Try to cure the problem by adjusting the separation pressure screw (see page 3-
7).
3. Clean or replace the separation plate.
1. Same as for step 1 of "Skew".
CN3 - trailing edge sensor (SB-0)
Does the OPU receive signals from SB-0 at CN3-4?
Y N
Replace SB-0.
Replace the OPU or the FCU.
Action
5-9