COPYRIGHT © 1998 CANON INC. FINISHER-C1/SADDLE FINISHER-C2 REV. 0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
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CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION
VII.POWER SUPPLY
1.
Outline
When the copier’s power switch is turned on, two channels of 24V power are supplied by the
finisher controller PCB.
Of the two 24V channels, one is used to drive solenoids: the 24V power from the finisher
controller PCB to a solenoid does not go through any protective mechanisms (microswitches, or the
like).
The 24V power to a motor, on the other hand, will not be supplied if any of the three door
switches is open.
The 24V channel is used for the generation of 5V power intended for sensors.
Saddle stitcher controller PCB
Logic
Sensors
5V
5V
24VR
24V
Circuit
breaker
(CB1)
Inlet door
switch
(MS1S)
Front door
switch
(MS2S)
Delivery
door switch
(MS3S)
Solenoids
24V
Motor systems
24V
(Q6)
Regulator IC
Finisher
controller
PCB
Figure 3-701
2.
Protective Mechanisms
The 24VDC power supply used for motors and solenoids is equipped with a circuit breaker
(CB1). The 24V power supply used to drive the feed motor (M1S), alignment motor (M3S), and the
paper positioning plate motor (M4S) is equipped with a fuse designed to melt when an overcurrent
flows.