Pick-Up/Feeding System; Outline - Canon NP6330 Service Manual

I. PICK-UP/FEEDING SYSTEM
A. Outline
The copier uses center reference, in which copy paper is fed centered along the path
of the pick-up/feeding assembly, and its sources of copy paper include two cassettes
(top, bottom) and a multifeeder.
Copy paper from the cassette or the multifeeder is controlled so that its leading edge
matches with the leading edge of the image on the photosensitive drum by the
registration roller; the paper is then sent to the copy tray through the transfer, separation,
feeding, and fixing assemblies.
The copier is equipped with a duplexing copying function, in which copy paper
leaving the fixing roller is sent to the lower feeding assembly by a paper detecting plate
for copying on both sides.
As many as eight sensors (Table 5-101) are used to monitor the movement of copy
paper, checking for jams and other errors.
PS11
Delivery
Delivery
roller 1
roller 2
PS12
Lower feeder
inlet roller
COPYRIGHT © 1997 CANON INC.
Fixing assembly
Feeding
assembly
Set-back
Set-back
roller 1
roller 2
Figure 5-101
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 PICK-UP/FEEDING SYSTEM
Registration roller
Photosensitive drum
PS10
PS9
Horizontal
registration
roller
PS13
Cassette 1
pick-up roller
Lower feeder
outlet roller
Cassette 2
pick-up roller
Multifeeder pick-up roller
Vertical path
PS14
roller 0
PS7
Vertical path
roller 1
Cassette 1
feeding roller
Cassette 1
separation roller
PS8
Vertical path
roller 2
Cassette 2
feeding roller
Cassette 2
separation roller
5-1