Pcbs - Canon ImageRunner iR8500 Series Service Manual

Chapter 15
Name
Pixel/line conversion PCB
Main controller PCB
DC controller PCB
Laser driver PCB 1
Laser driver PCB 2
DC power supply PCB
HV-DC PCB
HV-AC PCB
All-day power supply PCB
Relay PCB
Bi-Centronics PCB
Drum heater control PCB
BD PCB
Potential control PCB
AC driver PCB
Environment sensor PCB
Stackless feeder driver PCB
Cassette 3 paper level detection PCB
Cassette 4 paper level detection PCB
Laser scanner motor drive PCB
Control panel CPU PCB
Control panel PCB
Capacitor PCB (200V model only)

15.3.7.3 PCBs

15-54
T-15-32
Notation Function
PCB3 Executes pixel/line conversion.
PCB5 Controls the system.
PCB6 Controls the printer unit.
PCB7 Drives the laser diode.
PCB8 Controls the laser intensity.
PCB10 Supplies DC power.
PCB11 Generates high-voltage DC components.
PCB12 Generates high-voltage AC components.
PCB13 Supplies DC power.
PCB14 Distributes DC power supply.
PCB15 Serves as a download interface.
PCB17 Drives the drum heater.
PCB18 Detects the laser beam.
PCB19 Controls the drum surface potential.
PCB20 Drive the fixing heater.
PCB22 Detects the machine outside temperature/
humidity.
PCB23 Drives the duplex/feeder unit.
PCB24 Detects the level of paper in the cassette 3.
PCB25 Detects the level of paper in the cassette 4.
PCB26 Drives the laser scanner motor.
PCB30 Controls the control panel.
PCB31 Supplies inverter power.
PCB32 Prevents electrical noise
0008-9399