Controlling The Main Motor - Canon iR1200 Series Service Manual

CHAPTER 4 OPERATION

1.5 Controlling the Main Motor

1.5.1 Outline
The rotation of the machine's main motor (M1) is controlled by the drive signal (MON)
generated by the DC controller PCB.
The machine keeps the following ON at all times using the drive of the main motor,
thereby moving paper at the selected printing speed:
• vertical path roller
• registration roller
• primary charging roller
• developing cylinder
• photosensitive drum
• transfer charging roller
• fixing pressure roller
• delivery roller
The machine uses the activation of the cassette pickup solenoid or the manual feed pickup
solenoid as a trigger (occurring when the main motor is ON) to drive the following pickup
rollers for a specific period of time:
• cassette pickup roller
• manual feed pickup roller
4-12
COPYRIGHT © 2002 CANON INC.
Primary charging roller
Main motor
Delivery Fixing
roller pressure
roller
F04-105-01
2000 2000 2000 2000
Developing cylinder
Photosensitive
drum
Manual feed pickup roller
Transfer
Cassette pickup roller
charging
roller
CANON iR1200/iR1300 Series REV. 0 AUG. 2002
Vertical path roller
Registration roller