Canon IR5000 - iR B/W Laser, Service Handbook

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CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
3-15
1.7.1 Reader Unit
Ref. Name Function
12 Reader controller PCB Controls the reader unit/ADF.
13 CCD/AP PCB Drives the CCD/processes analog images.
15 Inverter PCB Controls the scanning lamp.
25 Fuse PCB Controls the mirror/lens heater. (standard in 100-V
model)
1.7.2 Printer unit
Ref. Name Function
1 DC controller PCB Controls the power supply of the printer unit/fin-
isher.
2 DC power supply PCB Supplies DC power.
3 AC driver PCB Controls the AC circuit.
4 Motor driver PCB Controls the motor.
5 HVT PCB Generates high-voltage.
6 Potential control PCB Controls the surface potential of the photosensitive
drum.
7 Drum heater control PCB Controls the drum heater.
8 Accessories power supply PCB Supplies power to the finisher.
9 Duplex driver PCB Controls the sensor, motor, and solenoid of the du-
plex unit.
10 Control panel PCB Controls the keys and LEDs.
11 Laser driver PCB Controls the laser drive.
14 BD PCB Detects the laser beam.
17 Control panel CPU PCB Controls the control panel.
18 LCD contrast adjustment PCB Adjusts the contrast of the control panel.
20 Serial number PCB Controls the serial number.
21 Anti-rush current PCB Prevents rush current in the fixing/feeding assem-
bly and the duplex unit.
22 Capacitor PCB Removes noise.
23 Fixing/feeding relay PCB Relays signals of sensors and motors of the fixing/
feeding unit.
24 Main controller PCB Processes digital images/controls the system.