Operation - Canon GP605 Service Manual

CHAPTER 9 EXTERNALS/AUXILIARY MECHANISMS
2.

Operation

a. Shift from Standby to Sleep Mode
The timer on the MFC PCB keeps track of lapses of time, and it issues a sleep mode shift
command when a specific period of time passes. In response to the sleep shift command, the DC
controller PCB causes the DC_POWER_OFF signal to go '0' and the A_REMOTE signal to go '0'.
In response to the A_REMOTE signal=0, the relay circuit switches the power supply to sleep
mode.
Keeps track of lapses of
time for sleep mode.
Sleep mode shift command
MFC
PCB
Control
panel power
switch
Printer
System
PCB
motherboard
(accessory)
Reference:
Standby power consumption
(Wh)
Sleep mode power consumption
(Wh)
The heater switch is off, and printer mode is not available.
9-22
COPYRIGHT © 1999 CANON INC.
Image
CPU
processor
IC18
PCB
Control
panel
CPU PCB
J503
DC
controller
PCB
MFC
PCB
J1407
Figure 9-602 Shift to Sleep Mode
100V/20A
model
357
12
When the signal goes '0',
shift to sleep mode.
A-REMOTE
Switching
circuit
J505
A31
J525
100V/15A
120V model
model
355
12
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Remote signal
3
control assembly
J1719
Relay PCB
230V model
335 330
12 16