Turning On The Power; Turning On The Power; Outline - Canon ImageRunner 600 Service Manual

CHAPTER 9 EXTERNALS/AUXILIARY MECHANISMS
B.

Turning On the Power

1.

Outline

The copier's power output is controlled by the main power supply switch and control panel
power switch, or signals from the printer board (accessory).
Line Main
Leakage noise power
breaker
filter switch
AC
input
DC power supply PCB
Converter
circuit 1
3.3V/5V/+8V
-8V/12V/15V
Converter
circuit 2
24V/38V
Sequence
control circuit
Control panel
CPU PCB
Control
J503
panel
switch
System
Printer
mother
PCB
PCB
9-12
COPYRIGHT © 1999 CANON INC.
J1706
1
5V
2
J1704
12V
1
3.3V/+8V
-8V/15V
x
J1703
1
2
24V
3
38V
1
J1702
24V
Switching
3
circuit
J1707
1
J1707
POWER_IN
Switching
circuit 2
DC
controller
PCB
A31
MFC
WAKE UP
PCB
J1407
Signal from the printer PCB
Figure 9-502 Power-On Sequence
Relay PCB
Switching
1
circuit 1
2
J1706
Switching
1
circuit 2
J1704
J1703
1
Overcurrent
2
detection
3
circuit
1
J1702
3
J1701
Remote signal
1
control assembly
J1701
3
J1719
A-REMOTE
J505
When the remote signal is received, the
converter circuit 2, switching circuit 1, and
J525 switching circuit 2 on the DC power supply
PCB are turned on.
Signal from the control panel power switch
: Power supply line
: Signal line
: Output when only the main power
: Output upon arrival of the signal
CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
Overcurrent
Output
detection
circuit
Output
Output
Output
MSW5
1
3
Door switch
4
7
J1723
switch is on.
from the control panel switch or
the printer PCB.
Manual feed
tray door
switch