Canon DADF-G1 Service Manual page 52

3 Power Supply
3.1 Outline
The following figure shows an outline of the power supply system.
The machine is supplied with two channels of 24 V power (24 VP, 24 VL).
24 VP is mainly used by loads, and is cut off when the machine or its top cover is opened.
The circuit breaker (CB1) turns on in response to an overcurrent, thereby cutting off the
power to protect the circuit.
24 VL is first converted to 5 V by the regulator, and is used by logic elements and sensors.
The fuse resistor (R26) is designed to melt in response to an overcurrent in the circuit,
thereby cutting off the power to protect the circuit.
24VP J2-1
J1-6
24VL
Host copier
COPYRIGHT© 2000 CANON INC.
RF switch
(MS1)
Circuit breaker
(CB1)
Fuse resistor
(R26)
Regulator
IC (Q14)
DADF controller PCB
F02-301-01
CANON DADF-G1 REV.0 OCT. 2000
CHAPTER 2 OPERATIONS AND TIMING
Upper cover
switch (MS2)
Logic
5V
Solenoid (SL1toSL3)
Clutch (CL)
Brake (BK)
Motor (M1,M2,M3,M4)
Sensor (S1toS14)
Original width detecting
volume (VR)
Indicator LED
(LED101,102)
Recirulating motor (M4)
2-35