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COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 7 EXTERNALS AND CONTROLS
7-5 P
3 Power Supply
3.1 Power Supply
3.1.1 Outline
The machine’s power supply is controlled by the DC power supply PCB; the PCBs and
associated components are shown in T07-301-01, and the distribution of power is shown in
F07-301-01.
Name Description
Main power supply PCB • Generates DC power from AC power
• Protects against overcurrent
Composite power supply PCB • Generates high voltage
Options PCB • Supplies power to side paper deck, finisher
Switch PCB (SW1/SW2) • Turns on/off main power supply PCB (SW1), Turns
on/off cassette heater, mirror heater, lens heater (SW2)
Door switch (SW3) • Detects state of door (open/closed), Cuts AC power to
fixing heater, Cuts 24V power to main motor, fixing
motor, composite power supply PCB
Thermistor power supply PCB (200 V) • Supplies power to thermsitor
Leakage breaker • Cuts power in response to error
T07-301-01