Canon iR5000i Service Manual page 216

J117
1
2
3
4
J121
1
2
3
4
5
6
7
EEPROM
9
10
11
13
14
18
19
20
J113
DC controller
B5
PCB
1. The laser power is automatically adjusted whenever the laser unit has
2. The laser starts writing when pickup is from the manual feed tray in re-
REF.
COPYRIGHT © 2001 CANON INC.
J2502
LD(+) [1]
3
LD(-) [1]
2
GND
1
J2501
20
19
GND
18
5V
17
16
15
GND
14
LD-DT [7]
12
GND
11
LD-EN [3]
10
GND
8
LSH [2]
7
3.3V
3
GND
2
1
Laser driver PCB
LWRPD [4]
been replaced.
sponse to the detection of paper by the registration paper sensor (PS29).
2000 2000 2000 2000
CHAPTER 3 LASER EXPOSURE SYSTEM
Laser
drive
circuit
F03-301-01
CANON iR5000i/iR6000i REV.0 JUNE 2001
Laser assembly
[6]
Laser
Intensity
monitor [5]
Laser unit
Laser write start
sensor (PS28)
3-7 P