Table of Contents
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65
Pickup operation fails.
Cause
Step
Drive gear
Upper right
cover, Lower
right cover
Pressure cover
Vertical path 1
clutch (CL8),
Vertical path 2
clutch (CL9),
Vertical path 3
clutch (CL13),
Vertical path 4
clutch (CL15),
Pre-registration
roller clutch (CL5)
Registration
roller drive clutch
Pickup
assembly
Pickup clutch
DC controller
PCB
Sensor
Pickup assembly
COPYRIGHT © 1999 CANON INC.
1
Slide out and in the cassette. Is the sound
of the lifter falling and the lifter motor
turning heard?
2
Is the drive belt routed correctly?
3
Are the upper right cover and the lower
right cover closed firmly?
4
Are the upper right cover and the lower
right cover forcing the vertical path rolls
1, 2, 3, and 4 in place?
5
Open the upper right cover and the lower
right cover. Do the vertical path rollers 1,
2, 3, and 4 and the pre-registant roller
rotate when power is put over the cover
open/closed sensor and the Copy Start
key is pressed?
6
Is the leading edge of the copy paper as
far as the registration roller assembly?
7
Open the upper right cover and the lower
right cover. Does the feeding/separation
roller rotate when a screwdriver is
inserted into the door switch and the Copy
Start key is pressed?
8
Set the meter to the 30VDC range, and
connect the probes to the connectors of
the DC controller PCB as indicated in the
following table. Does the voltage change
from 24 to 0 V when the Copy Start key
is pressed?
Cassette
Clutch
Right deck
CL10
Left deck
CL11
3
CL12
4
CL14 J517-A1
9
Check which sensor has detected the jam
in COPIER>I/O>IP in service mode. Is
the sensor normal?
CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
CHAPTER 13 TROUBLESHOOTING
Checks
+
-
J511-A1
GND
J518-B7
GND
GND
J515-A1
GND
Yes/No
Action
NO
See "The lifter fails to
move up."
NO
Route the belt correctly.
NO
Close the covers
firmly.
NO
Check the pressure
springs.
NO
Check the wiring; if
normal, replace the
clutch(es).
YES
See "the registration
roller fails to rotate."
YES
Go to step 9.
YES
Check the wiring; if
normal, replace the
clutch in question.
NO
Replace the DC
controller PCB.
NO
Check the wiring and
the lever; if normal,
replace the sensor.
YES
Remove the pickup
assembly, and check
the spring.
13-105
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