Service manual

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 7 PICK-UP/FEEDING SYSTEM
7-20
6. Paper leading edge sensor delay jam (for multi-feeder pick-up)
In the case of multi-feeder pick-up, if paper has not arrived at the leading edge sen-
sor (PS301) after approx. 1.2 seconds after the registration clutch (CL302) has come
ON, a retry pick-up takes place. If paper has not arrived at the paper leading edge sen-
sor approx. 1.2 seconds after the registration clutch operation for the retry pick-up has
come ON again, yet another retry takes place. If paper still does not arrive at the sensor
after the stipulated amount of time has passed, it is judged a paper leading edge sensor
delay jam has occurred.
Figure 7-611
7. Paper leading edge sensor stationary jam
If 6.7 seconds passes after paper has arrived at the leading edge sensor (PS301)
but has not passed through it, it is judged a paper leading edge sensor stationary jam
has occurred.
Figure 7-612
Registration clutch
(CL302)
Paper leading edge
sensor jam check
Paper leading edge
sensor (PS301)
Main motor
(M601)
Start signal
1.2 sec.
1.2 sec.
Normal
Abnormal
1.2 sec.
Retry pick-up
1.2 sec.
Retry pick-up
Paper leading edge
sensor (PS301)
Paper leading edge
sensor jam check
Main motor
(M601)
Start signal
6.7 sec.
Normal
Abnormal
6.7 sec.
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