Service manual

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 CASSETTE FEEDER
10-9
B. Jam Sensing
1. Pick-up delay Jam
During the cassette feeding sequence, once the pick-up solenoid (SL301) is ON, if
the paper does not arrive at the pick-up sensor (PS303) within 3 seconds, the feeding
operation is retried. Once again, if the pick-up sensor does not come ON in the 3 sec-
onds following the activation of the pick-up solenoid, the unit determines that a delay
jam has occurred.
Figure 10-602
Pick-up solenoid
(SL651)
Pick-up sensor
jam check
Pick-up sensor
(PS651)
Feeder motor
(M651)
Start signal
Approx.
3 seconds
Normal
Second sheet pick-up
Retry feed
Abnormal
Approx.
3 seconds
Approx.
3 seconds
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