Canon ImageRunner iR8500 Series, Service Manual, Page: 780 / 1122

Chapter 15
15-52
F-15-39
T-15-31
Name Notation Function
CCD/AP PCB PCB1 Drives the CCD/processes analog images.
Reader controller PCB PCB2 Controls the reader unit.
Pixel/line conversion PCB PCB3 Executes pixel/line conversion.
Differential PCB PCB4 Executes communication signal conversion.
Main controller PCB PCB5 Controls the system.
DC controller PCB PCB6 Controls the printer unit.
Laser driver PCB 1 PCB7 Drives the laser diode.
Laser driver PCB 2 PCB8 Controls the laser intensity.
Scanner motor drive PCB PCB9 Drives the scanner motor.
DC power supply PCB PCB10 Supplies DC power.
HV-DC PCB PCB11 Generates high-voltage DC components.
HV-AC PCB PCB12 Generates high-voltage AC components.
All-day power supply PCB PCB13 Supplies DC power.
Relay PCB PCB14 Distributes DC power supply.
Bi-Centronics PCB PCB15 Serves as a download interface.
Fluorescent lamp inverter PCB PCB16 Controls the activation of the fluorescent lamp.
Drum heater control PCB PCB17 Drives the drum heater.
BD PCB PCB18 Detects the laser beam.
Potential control PCB PCB19 Controls the drum surface potential.
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