Filter
Top Products
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