Lifter Operation - Canon NP6330 Service Manual

C. Lifter Operation
1. Operation
When the deck is slid inside the pedestal, the pick-up roller lowers and the light-
blocking plate leaves the deck lifter position sensor (PS5). The condition causes the lifter
drive clutch (CL4) to turn on, and the drive of the pedestal motor (M1) is transmitted to
the cable take-up shaft, thereby raising the lifter.
The lifter keeps rising until the deck lifter position sensor (PS5) detects the top sheet
of the paper stack placed on the lifter.
The deck lifter upper limit sensor (PS6) serves to stop the lifter in the event that the
sensor arm should block the deck lifter position sensor (PS5) for some reason.
When the lifter has reached its upper limit, it is maintained in position by the work of
a one-way gear.
When the deck is removed from the pedestal, the take-up gear disengages itself from
the one-way gear, thereby allowing the lifter to lower on its own weight.
Deck lifter position
sensor
(PS5)
Pick-up roller shaft
Pick-up roller up, i.e., the light-blocking plate of the lifter detecting lever
:
lowers to block the lifter position sensor (PS5).
: Pick-up roller down, i.e., the light-blocking plate of the lifter detecting
lever rises to leave the lifter position sensor (PS5).
COPYRIGHT © 1997 CANON INC.
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Lifter detecting
Paper detecting
lever
spacer
Copy paper
Lifter
Figure 8-404
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 8 PAPER DECK PEDESTAL
Feeding roller
Pick-up
roller arm
Deck
Separation roller
8-9