COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 3 LASER EXPOSURE SYSTEM
3-6 P
F03-301-01
REF.
The laser power of the laser unit is adjusted at the factory, and it must not
be adjusted in the field.
ADJUST>LASER>PVE-OFST
Use it to adjust the position of laser illumination.
ADJUST>LASER>LA-OFF
Use it to adjust the timing of laser trailing edge de-activation for non-de-
fault size papers.
J307
J310
DATA(+) [1]
DAOUT [7]
LDE* [3]
S/H [2]
DATA(-) [1]
GND
Laser driver PCB
DC controller
PCB
J500
[6]
J501
Laser assembly
Laser
Intensity
monitor [5]
Laser
drive
circuit
3
2
1
5
4
3
1
2
1
2
3
5
4
4
3
2
1
1
2
3
4
GND
GND
+5V
J312
INT_TOPO_PD [4]
A14
Image leading edge
sensor
(PS12)
J304 Y_REG_PD [8]
A8
Horizontal registration
paper sensor
(PS11)
Laser unit
Summary of Contents for iR2200 Series
Page 8: ......
Page 12: ......
Page 30: ......
Page 32: ......
Page 54: ......
Page 86: ......
Page 90: ......
Page 94: ......
Page 96: ......
Page 124: ......
Page 142: ......
Page 152: ......
Page 160: ......
Page 168: ......
Page 178: ......
Page 180: ......
Page 222: ......
Page 224: ......
Page 278: ......
Page 280: ......
Page 298: ......
Page 300: ......
Page 324: ......
Page 368: ......
Page 386: ......
Page 388: ......
Page 404: ......
Page 414: ......
Page 416: ......
Page 422: ......
Page 424: ......
Page 434: ......
Page 436: ......
Page 440: ......
Page 468: ......
Page 473: ......
Page 550: ......
Page 552: ......
Page 658: ......
Page 704: ......
Page 706: ......
Page 754: ......
Page 756: ......
Page 760: ......