Outline - Canon FY8-13FW-000DADF-A1 Service Manual

III. POWER SUPPLY
A. Outline
Figure 2-301 is an outline diagram of the machine's power supply system.
The machine's power supply is provide by its host copier with 24 V (24 VP, 24 VL).
24 VP is mainly used for loads, and is cut off when the machine is opened or its upper cover is
opened. The circuit breaker (CB1) operates to cut off the power to protect the circuit in response to
overcurrent.
24 VL is converted by the regulator into 5 V, and is used by the logic system and sensors.
The fuse resistance (R26) melts in response to overcurrent in the circuit, thereby cutting off the
power and protecting the circuit.
24VP
J2-1
Circuit breaker
Fuse resistance
24VL
J1-6
Copier
COPYRIGHT © 1998 CANON INC.
RF switch
(MS1)
(CB1)
(R26)
Regulator
5V
IC (Q14)
DADF controller PCB
Figure 2-301
CANON DADF-A1 REV.0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2 BASIC OPERATION
Upper cover switch
(MS2)
Logic
Solenoid
(SL1 through SL4)
Clutch (CL)
Brake (BK)
Motor (M1, M2, M3, M4)
Sensor (S1 through S14)
Original width detecting
volume (VR)
Indicator LED
(LED101, LED102)
Re-circulation motor (M4)
2-53