Canon F-1, Service Manual

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Technology > Controls > DADF > Power Supply Assembly
Technology > Controls > DADF > Power Supply Assembly
■
Fan
This equipment is equipped with 3 fans.
Code Fan Function
FM1 Motor driver cooling fan To cool down the motor IC on DADF driver PCB (PCB1).
FM2 Read motor cooling fan To cool down the read motor (M4).
FM3 Scanner unit cooling fan To cool down the scanner unit.
Motor driver cooling fan (FM1)
Read motor cooling fan (FM2)
Scanner unit cooling fan (FM3)
Read motor (M4)
Scanner unit
DADF driver PCB (PCB1)
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Power Supply Assembly
Power supply schematic diagram is shown below.
This equipment receives 5 systems (24
.5, 24, 6, 5, 4.5 V) of power supply from the reader
unit.
24V is mainly used for the motor, the solenoid, the fan, and the LED lamp unit.
5V is mainly used for the sensor.
The converter in the DADF driver PCB (PCB1) generates 3.3V, and supplies to the original
width volume (VR).
24V
24V
6V
4.5V
3.3V
24V
24V
Reader
controller
PCB
Solenoid
Motor
Fan
5V
Sensor
24V
DADF driver
PCB
Scanner unit
PCB
LED
lamp unit
Original
width volume
24V
5V
Error Code
E227 (Error in power supply (24V))
-0101 When the power supply is charged in DADF 24V port is off.
-0102 When the job starts in DADF, 24V port is off.
-0103 When the job is completed in DADF, the 24V port is off.
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