Canon PC400 Service Manual page 74

CHPTER 4 IMAGE FORMATION SYSTEM
|
{
4V (approx.)
VR602
VR603
|
{
5V
Amplifier circuit
Control panel PCB
4-16
COPYRIGHT © 1998 CANON INC.
AE sensor
PD602
J621
-2
J621
-1
DC bias
control
circuit
J601 J202
-4 -19
DC controller/DC power supply PCB
Figure 4-103F
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Scanning lamp
Lens array
Photosensitive drum
DCBPWM
AE signal
Microprocessor
Forward
Developing
cylinder