Oce 3121, Technical & Service Manual

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ed.2 Trouble shooting 43
49 Pick-up failure: specialities
50 The registration roller fails to rotate.
Lifter drive 3 Is the lifter drive assembly
normal? No Correct it.
Pick-up
assembly Yes Replace the pick-up
unit.
Cause Step Checks Yes/No Action
Pick-up
clutch CL2
for the speci-
ality tray 1 Select speciality pick-up, and
press the copy button. Does
the pick-up roller rotate? No Check the wiring. If it is
normal, replace the
clutch CL2.
Cam for the
paper guide 2 Select speciality pick-up, and
press the copy button. Does
the guide plate jump up? Yes Check the position of
the cam and the separa-
tion pad. Adjust as nec-
essary, or replace it.
Multifeeder
holding plate
releasing
solenoid
(SL3) 3 Connect the + to J14-B12 and
the – to J14-B13 on the DC
control PBA. Does the meter
reading change from 0V to
approximately 24 V when the
copy button is pressed? Yes Check the wiring. If it is
normal, replace the
solenoid SL3.
DC control
PBA No Replace the DC control
PBA
Cause Step Checks Yes/No Action
Registration
roller 1 Press the copy button. Does
the registration roller start
rotating immediately after the
scanner starts to move? Yes Check the drive of the
registration roller.
DC control
PBA
2
Connect the + to J114-B10
and the – to J114-B1 on the
DC control PBA. Does the
meter reading change from
0V to approximately 24 V
when the scanner starts to
move?
No
Replace the DC control
PBA
Clutch CL1
for the regis-
tration roller Yes Check the wiring from
the DC control PBA. If
undamaged, replace the
clutch CL1.
Cause Step Checks Yes/No Action