The Contact Sensor Fails To Move; The Contact Sensor Led Fails To Go On - Canon SmartBase PC1200s Service Manual

CHAPTER 7 TROUBLESHOOTING

4.2.3 The contact sensor fails to move.

Contact sensor, Spacer of contact sensor
1) Are the contact sensor and the spacers of the contact sensor
NO:
Contact sensor drive belt
2) Is the contact sensor drive belt normal?
NO:
Contact sensor drive rail
3) Move the contact sensor slowly. Does it move smoothly?
NO:
Connector
4) Is the connection between the connector J310 on the image proces-
NO:
Reader motor, Image processor PCB
5) Try replacing the reader motor. Is the problem corrected?
YES: End.
NO:

4.2.4 The contact sensor LED fails to go ON.

Connector
1) Is the connection of the following sensors normal: J501 and J503 on
NO:
Contact sensor
2) Try replacing the contact sensor. Is the problem corrected?
YES: End.
Analog processor PCB, Image processor PCB
3) Try replacing the analog processor PCB. Is the problem corrected?
YES: End.
NO:
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COPYRIGHT © 2001 CANON INC.
mounted correctly?
Mount them correctly.
Replace the contact sensor drive belt.
Check the surface of the contact sensor drive rail for foreign mat-
ter, and remove any foreign matter. If it is soiled, clean it with alco-
hol, and apply a small amount of lubricant.
sor PCB and the connector of the reader motor normal?
Correct the connection.
Replace the image processor PCB.
the analog processor PCB; J317 on the image processor PCB; J504
on the contact sensors?
Correct the connection. If the flexible cable has a scratch, replace
it.
Replace the image processor PCB.
2000 2000 2000 2000 CANON SmartBase PC1200s/iR1200s REV. 0 DEC. 2001