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©
2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS

4-65 T

6.2.7 PCBs
• Reader Unit
Ref. Description Remarks
Name
[12] Controls the reader unit/ADF.
Reader controller PCB
[13] Drives the CCD.
CCD PCB
[14] Controls the scanning lamp.
Inverter PCB
• Printer Unit
Ref. Description Remarks
Name
[1] Controls the generation of
Composite power supply PCB high voltage.
[2] Controls the supply of DC .
Main power supply PCB power
[3] Controls the main power
Switch PCB switch/heater.
[4] Controls the printer unit.
DC controller PCB
[5] Controls the pickup assembly.
Pickup PCB
[6] Controls laser drive.
Laser driver PCB
[7] Controls the supply of power
Accessories power supply PCB to the finisher/paper deck.
[8] Detects temperature of the drum.
Drum sensor PCB
[9] Controls keys and LEDs.
Control panel PCB
[10] Controls digital image Includes counter PCB,
Main controller PCB processing/system. soft IDPCB, Centronics PCB.
[11] Controls the DC-DC converter. 200V model only.
Thermistor separation power
supply PCB