Service manual

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 7 PICK-UP/FEEDING SYSTEM
7-5
B. Retry pick-up
When paper is not picked-up even when the pick-up roller is rotating, the retry pick-
up operation occurs.
The DC controller PCB’s CPU counts the time from when the paper solenoid
(SL301) comes ON. If the pick-up sensor (PS303) cannot detect the paper’s leading
edge within a designated period of time, the pick-up solenoid comes ON again and the
pick-up operation is retried. Even when the retry pick-up is actuated once, if the pick-up
sensor does not detect the paper’s leading edge within the specified period of time, it
judges there is a jam, and a jam message is displayed on the control panel’s display.
Figure 7-303
Pick-up solenoid
(SL301)
Pick-up sensor
(PS303)
Main motor
(M601)
Start signal
3.0 sec.
Normal
2
nd
sheet pick-up
Retry pick-up
Abnormal
3.0 sec. 3.0 sec.
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