Machine Operation; Adf/Scanner - Ricoh FACSIMILE FAX77 Field Service Manual

5-3. Machine Operation

1. ADF/Scanner

Symptom
Non-feed
Action
1.
Clean the feed and pick-up rollers (soft cloth and water).
Check that the gears and spring clutches are clean and working properly.
Try to cure the fault by adjusting the separation pressure (see page 3-7). If it has
no effect, return the screw to its original position.
2. Are the ADF cover and 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.
N
Replace SB-10 and/or the actuator mechanism.
N
Replace the FCU.
5-7