Canon imagePRESS C1 Service Manual - page 242
Chapter 3
3-4
3.1.4 DC Controller
0012-8824
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / imagePRESS C1+
The function configuration of DC Controller PCB is shown below.
F-3-4
BAT1 (Lithium battery)
This is a back up battery for RAM
IC28 (PWM IC1)
This IC converts image data (in odd-numbered lines) output from ASIC1 into the Pulse Width Modulated data.
IC29 (PWM IC2)
This IC converts image data (in even-numbered lines) output from ASIC1 into the Pulse Width Modulated data.
IC36 (CPU)
This IC controls the print sequence and the interface with the controller.
IC46 (RAM)
This IC stores the setup data, such as service mode and the like.
IC52 (Flash ROM)
This IC stores the firmware.
IC262 (ASIC2)
This IC controls the laser driver and the BD.
IC270 (ASIC2)
This IC controls the high-voltage, fixing, various accessories (Finisher, Paper deck, etc.), and various loads (Motor, Sensor, Clutch, Solenoid, and so on).
IC28
IC52
IC46
IC36
IC29
IC262
IC270
BAT1