5-62
COPYRIGHT © 1999 CANON INC.
CANON ADF FOR iR600 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 TROUBLESHOOTING
Step
3
4
5
6
Action
Replace the pickup
roller height sensor 1
(PI8).
Replace the pickup
roller height sensor 2
(PI9).
Replace the pickup
roller home position
sensor (PI7).
Replace the ADF
controller PCB.
Checks
Set the meter range to 10 VDC. Move the
pickup roller unit (rear) up and down by
hand. Does the voltage between
connectors J14-A8 (+) and J14-A7 (-) on
the ADF controller PCB change between
0 V and 5 V?
Set the meter range to 10 VDC. Move the
pickup roller unit (font) up and down by
hand. Does the voltage between J14-A11
(+) and J14-A10 on the ADF controller
PCB alternate between 0 and 5 V?
Set the meter range to 10 VDC.
Move the pickup roller unit (front) up and
down by hand. Is the voltage between
J14-A5 (+) and J14-A4 (-) on the ADF
controller PCB about 5 V?
Replace the ADF controller PCB. Is the
problem corrected?
Yes/
N o
NO
NO
NO
YES
Cause
Pickup roller
height sensor 1
(PI8)
Pickup roller
height sensor 2
(PI9)
Pickup roller
home position
sensor (P7)
ADF controller
PCB
5
E422
Step
1
2
3
Action
Connect the cable
properly.
Connect the connector
properly.
Replace the cable.
Replace the ADF
controller PCB.
Checks
Is the communication cable between the
machine and the copier connected
properly?
Is the connector (J1) on the ADF
controller PCB connected properly?
Is the cable from the connector (J1) of the
ADF controller PCB to the
communication cable normal?
Yes/
N o
NO
NO
NO
YES
Cause
Communication
cable
Connector
Cable
ADF controller
PCB