Service manual

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 7 PICK-UP/FEEDING SYSTEM
7-15
■ Detection by the registration sensor (PS302)
The conditions for detection by the registration sensor differ from the time of the first
sheet pick-up operation and the second and subsequent sheet pick-up in consecutive
paper feed.
a. Delay jam at the time of the first sheet pick-up
When paper has not arrived at the registration sensor (PS302) within approx. 2.3
seconds after the pick-up sensor (PS303) has turned ON, it is judged that a delay jam
has occurred.
Figure 7-603
Pick-up sensor
(PS303)
Registration sensor
jam check
Registration sensor
(PS302)
Main motor
(M601)
Start signal
2.3 sec.
Normal
Pick-up sensor
(PS303)
Registration sensor
jam check
Registration sensor
(PS302)
Main motor
(M601)
Start signal
2.3 sec.
Abnormal
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