Process Description; Outline - Canon PC400 Service Manual

I. PROCESS DESCRIPTION
A. Outline
The copier's image formation system has the following functions:
• Controls the scanning lamp.
• Controls the primary charging.
• Controls the transfer charging.
• Controls the developing bias.
J621-4
Control panel
PCB
J601-10
J202-13
Note : The AE sensor is provided for the PC420/430/FC220 only.
COPYRIGHT © 1998 CANON INC.
Lamp intensity sensor
AE sensor
Primary
charging
roller
-2
-4
-19
DC controller/DC power supply PCB
Figure 4-101A
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHPTER 4 IMAGE FORMATION SYSTEM
Scanning
lamp
Lens
array
Developing
cylinder
Transfer
charging
roller
Photosensitive
drum
4-1