Controlling The Laser Scanner Motor - Canon iR2200 Service Manual

4 Controlling the Laser Scanner Motor

4.1 Outline
Part 2> Chapter 4> 4.1 "Outline"
The following items are related to laser scanner motor control:
[1] Laser scanner motor drive signal; when '1', the laser scanner motor goes ON (turning
on/off the motor).
[2] Laser scanner motor ready signal; when '0', the laser scanner motor rotates at a specific
speed.
DC controller
B9
PCB
B10
Main power
supply PCB
E110
Indicates the presence of an error in the laser scanner motor.
COPYRIGHT © 2001 CANON INC.
J312
[2]
[1]
GND
+24V
2
1
J204
2000 2000 2000 2000
CHAPTER 3 LASER EXPOSURE SYSTEM
Laser scanner motor unit
J3128
Speed
4
control
3
circuit
2
1
Reference
pulse
generation
circuit
F03-401-01
CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
Motor
driver
M10
Laser scanner
motor
3-7 P