Canon LBP-1210 Service Manual page 104

CHAPTER 2
Laser/scanner unit
J802
-4
M801
-3
Scanner
-2
motor
-1
Scanner
motor driver
circuit
J801
-10
-8
Laser diode
-6
-5
-7
BD sensor
-1/-9
Laser driver -3
circuit
-2
J2
-11
-10
-5
-6
-7
Interface
-8
controller PCB
-4
-1
-2/-3
2 - 18
Intermediate PCB
J907
J905
-4
-1
-2 -1
-3 -2
-4 -3
J901
-10
-10
-8 -8
-6
-6
-5
-5
-7
-7
-2/-10 -9
-8
-9
J902
-2
-3
-8
-14
-7
-13
-6
-12
-5 -11
-9
-22
-12
-19
-10/-11
-20/-21
Figure 2-2-8
Engine controller PCB
J201
+24V
-19
The scanner motor accelerates
-22
when "L."
/ACC
-21
/DEC
The scanner motor decelerates
-20
when "L."
+5V
-13
+3.3V
-15
-17
CNT0
Laser control signals
-18
See Page 2-27 for details.
CNT1
-16
/BDI
BD input signal
-14
VDO
/VDO
-9
/RESET Video interface signals
See Page 2-22 for details.
-10
/SCLK
-11
SC
-12
/BD
+3.3V
-1
+5V
-4
-2/-3