Power Supply System; Outline Of The Power Supply System - Canon PC920 Service Manual

II. POWER SUPPLY SYSTEM
A.

Outline of the Power Supply System

Door switch
DS1
Power
plug
Relay
RL601
FU102
transformer
COPYRIGHT © 1999 CANON INC.
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS
Composite power
Noise
supply circuit
filter
circuit
Trans-
former
T600
DC
power
supply
circuit
Main
Fixing
heater
control
T101
circuit
Scanning
lamp
control
circuit
High-
voltage
power
supply
circuit
Figure 7-201
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Auxiliary
power
supply
circuit
+5V
Micro-
processor
(Q900)
To ADF
+5V
+24VU
+24VR
+5V
Control panel
+24VR
AE sensor
+5V
Sensor
+24VU
DC
Solenoid
controller
PCB
+24VU
Scanner/lens
drive motor (M2)
+24VU
Scanner cooling fan
+24VU
Blanking lamp
Main motor/
+24VU
main motor
driver PCB
Fixing heater
Scanning lamp
Primary charging
roller
Developing roller
Transfer roller
Static eliminator
M1
7-3