Control System Configuration - Canon imagePRESS C1 P Service Manual

Chapter 6

6.1.3 Control System Configuration

imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / imagePRESS C1+
Control of the laser exposure system is mainly performed at ASIC1 (IC53) in DC controller PCB.
ASIC1 (IC53) performs the following six controls and produces the electrostatic latent image on the photosensitive drum based on the video signals sent from the
main controller PCB.
[1] Laser ON/OFF control
[2] Main Scan Sync Control
[3] Sub Scan Sync Control
[4] APC Control
[5] PWM Control
[6] Laser Scanner Motor Control
MN-CON: Main Controller PCB
DC-CON: DC Controller PCB
6.2 Basic Sequence
6.2.1 Basic Sequence
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / imagePRESS C1+
The basic sequence for the laser exposure system is shown as follows.
1) The print demand signal is input by the start key ON or from the main controller PCB.
2) DC controller PCB rotates the laser scanner motor.
6-2
[8]
[2]
Drum
DC-CON
ASIC(IC53)
Video
MN-CON
MN-CON
[4]
[5]
F-6-1
[1]
[2]
[3]
[4]
[5]
[6]
F-6-2
[6]
[3]
[7]
[1]
Laser-scanner
Drum
0012-5542
0012-6308