Canon NP6621 Service Manual page 136

OPERATIONS AND TIMING
b. Lifter Operation
Copy paper
3–80
Deck motor
M
Pick-up roller
Lifter position
sensor (PS3)
Paper deteciting spacer
Pick-up roller
Lifter limit detecting lever
Figure 3-435
COPYRIGHT © 1998 CANON INC.
Feeding roller
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Separation roller
Paper sensor
Paper detecting
lever
Lifter upper limit
sensor (PS4)
Oil damper