Ricoh FACSIMILE FAX77, Field Service Manual

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Symptom Action
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.
Abnormal noise 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.
Double feed 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.
Dirty document 1. Same as for step 1 of “Skew”.
Second page not fed 1. Check that the following connectors are not loose: FCU CN15 - OPU CN1, OPU
in 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.
5-9