Low Power Switch; Fan Interlocking Switch - Canon SADDLE FINISHER K3 Service Manual

CHAPTER 2 OPERATION OVERVIEW
c. Fuse PCB
The fuse PCB and DC controller PCB are equipped with the fuses described in the table
below, which short in the event of over-current in either power supply system. These fuses
cannot be replaced in the field.
Power supply system
24VDLV
24VINS
24VZFLD
24VSTP
24VF
24VPNH
36VPNH
36VTRYA
36VTRYB
5V

9.1.4 Low Power Switch

The finisher controller PCB is equipped with a power-saving switch (Q185) which cuts
off the 24VDLV and 24VU power supplies at a specified timing. Power is shut off when the
power-saving key on the copier is pressed and when the copier is in low power mode.

9.1.5 Fan Interlocking Switch

The fuse PCB and punch driver PCB are equipped with fan interlocking switches (Q715/
Q759) that are linked to the fan drive signal and cut off the power supply whenever the fans
are not operating.
2-88
COPYRIGHT© 2001 CANON INC.
Fuse PCB
FU711
FU711
FU714, FU717
FU714
FU718
FU713
FU712
-
-
FU716
T02-901-03
2000 2000 2000 2000
Finisher controller PCB
-
FU103
FU101
-
-
-
-
FU105
FU104
-
CANON SADDLE FINISHER K3/K4 REV.0 MAR. 2001