Canon PC420 - Page 74

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