Pick-Up Fails. (Multifeeder) - Canon NP6330 Service Manual

CHAPTER 11 TROUBLESHOOTING
29

Pick-up fails. (multifeeder)

Cause Step
1
Multifeeder 2
pick-up clutch
(CL4)
Paper guide 3
plate cam
Multifeeder 4
pick-up;
solenoid (SL3)
DC controller
PCB
11-92
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Checks
Does the Add Paper indicator
remain on?
Select the multifeeder, and press
the Copy Start key. Does the
multifeeder pick-up roller rotate?
Does the paper guide plate move
up when the Copy Start key is
pressed?
Set the meter to the 100VDC
range, and connect the probes of
the meter to J104-B9 (+) and
J104-B8 (-; MFPUSD*) on the DC
controller PCB. Does the voltage
change from about 0 to 24 V
when the Copy Start key is
pressed?
YES/NO
YES
YES
YES
NO
YES
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
See "The Add Paper
indicator fails to turn off."
Check the wiring from
the DC controller PCB to
the clutch; if normal,
replace the clutch.
Check the position of the
paper guide plate cam
and the separation pad;
adjust or replace as
necessary.
Check the wiring from
J104 to the solenoid; if
normal, replace the
solenoid.
Replace the DC
controller PCB.