Canon GP160DF, Service Manual

Page: 129 / 797

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 7 PICK-UP/FEEDING SYSTEM
7-19
4. Registration sensor stationary jam (for multi-feeder pick-up)
In the case of multi-feeder pick-up, if, after the multi-feeder pick-up solenoid (SL302)
has come ON from the second or subsequent sheet pick-up, the preceding paper has
not left the registration sensor (PS302) after approx. 1.0, it is judged that a registration
sensor stationary jam has occurred.
Figure 7-609
5. Paper leading edge sensor delay jam (for cassette pick-up)
If paper has not arrived at the leading edge sensor (PS301) approx. 1.2 seconds
after the registration clutch (CL302) has come ON, it is judged a paper leading edge
sensor jam has occurred.
Figure 7-610
Start
signal
Multi-feeder pick-up
solenoid (SL302)
Registration sensor
jam check
Registration sensor
(PS302)
Main motor
(M601)
1.0 sec.
Normal
1.0 sec.
Abnormal
First sheet
Second sheet Third sheet
Registration clutch
(CL302)
Registration sensor
jam check
Paper leading edge
sensor (PS302)
Main motor
(M601)
Start signal
1.2 sec. 1.2 sec.
Normal Abnormal