Pick-Up; Outline; Pick-Up Operation - Canon NP6251 Service Manual

CHAPTER 8 PAPER DECK-A1
B. Pick-Up

1. Outline

The side paper deck ("deck" hereafter) is capable of accommodating 3,500 sheets of
copy paper at once (A4, LTR, B5; 80 g/m
control signal from the copier's DC controller PCB.
The lifter of the deck is driven by the deck lifter motor (M102), and copy paper is fed
using the drive of the deck main motor (M101).

2. Pick-Up Operation

The copy paper inside the deck is held up by a lifter and kept in place at a specific
position.
When the Copy Start key is pressed and the deck pick-up clutch (CL102) turns on,
the drive of the deck main motor (M101) rotates the pick-up roller to pick up copy paper.
At this time, the feeding roller and the separation roller serve to make sure that only
one sheet of copy paper is fed; thereafter, the deck pick-up roller releasing solenoid
(SL101) turns on as soon as the deck paper sensor (Q107) detects copy paper, thereby
moving the pick-up roller to move away from the surface of the copy paper.
The deck vertical path roller starts to rotate when the deck vertical path clutch
(CL101) turns on. The copy paper is then sent to the copier's registration roller and made
to arch (so that it will not move askew).
The registration roller controls the copy paper so that its leading edge matches the
leading edge of the image on the photosensitive drum.
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COPYRIGHT © 1997 CANON INC.
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), and picks up copy paper according to the
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)