User Guide

COPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
11-72
17 Pickup fails. (multifeeder)
YES/NO
NO
NO
NO
NO
YES
Cause
Wrong
operation
Main motor
(M1)
Paper place-
ment
Multifeeder
pickup
solenoid
(SL4),
Pickup
clutch
solenoid
(SL1)
DC control-
ler PCB
Step
1
2
3
4
Checks
Is the multifeeder selected on the
control panel?
Does the main motor (M1) rotate when
the Copy Start key is pressed?
Is the paper placed in the multifeeder
correctly?
Set the meter range to 30 VDC, and
connect the meter probes as indicated.
Does the voltage change to about 24 V
in keeping with pickup operation?
Table 11-403
Action
Instruct the user on the
correct way of operat-
ing the machine.
See "The main motor
fails to rotate."
Instruct the user on the
correct way of placing
paper.
Check the wiring from
the solenoid to the DC
controller PCB; if
normal, replace the
solenoid in question.
Replace the DC
controller PCB.
Multifeeder
pickup solenoid
(SL4)
Pickup clutch
solenoid (SL1)
+
J109-8
J109-4
-
J109-7
J109-3
16 Pickup fails. (cassette)
YES/NO
NO
NO
NO
NO
NO
YES
Cause
Main motor
(M1)
Cassette
Paper in
cassette
Pickup
clutch
solenoid
(SL1),
Cassette
pickup
solenoid
(SL5)
Cassette
spring
DC control-
ler PCB
Step
1
2
3
4
5
Checks
Does the main motor (M1) rotate when
the Copy Start key is pressed?
Is the cassette set correctly?
Is the paper in the cassette placed
correctly?
Set the meter range to 30 VDC, and
connect the meter probes to the fol-
lowing terminals. Does the voltage
change to about 24 V in keeping with
pickup operation?
Table 11-402
Is the force of the cassette spring
within specification? (See p. 11-10.)
Action
See "The main motor
fails to rotate."
Set the cassette cor-
rectly.
Instruct the user on the
correct method of
placing paper.
Check the wiring from
the solenoid to the DC
controller PCB; if
normal, replace the
solenoid.
Replace the cassette
spring.
Replace the DC
controller PCB.
Pickup clutch
solenoid (SL1)
Cassette pickup
solenoid (SL5)
+
J109-4
J132-2
-
J109-3
J132-1
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