Canon NP6512 - Outline; Pickup;Feeding System

CHAPTER 5 PICK-UP/FEEDING SYSTEM
COPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
5-1
Table 5-101
Notation
PS3
PS4
Q751
Name
Delivery sensor
Vertical path roller paper sensor
Pre-registration roller paper sensor
Remarks
I. PICKUP/FEEDING SYSTEM
A. Outline
The machine moves paper using a center reference method, in which paper is moved in the
middle of the pickup/feeding path, and is equipped with a cassette, and multifeeder as the source of
paper.
From the cassette, or multifeeder, copy paper is picked up and is controlled by the registration
roller so that its leading edge will match the leading edge of the image on the photosensitive drum;
it is then moved through the transfer, separation, feeding, and fixing assemblies to reach the copy
tray.
The machine is equipped with three sensors used to monitor the movement of copy paper.
Figure 5-101
Multifeeder
pickup roller
Cassette
pickup roller
Vertical
path roller
Q751
PS4
Static
eliminator
Photosensitive
drum
Holding plate
Cassette
Copy tray
Fixing assembly
Delivery roller
PS3
DC controller PCB
Registration roller
Delivery paper detection signal(DPD)
Pre-registration roller paper detection signal(RPD)
Vertical path roller paper detection signal(PDP)