Canon CLBP-460PS, Service Manual

Page: 358 / 566

Timing chart for image density control (Dhalf)
A - 22
Secondary transfer roller contact
ITB unit contact
HP1 HP2 HP3 HP4 HP5 HP6 HP7 HP8
Dhalf Dmax & Dhalf initial rotation Dhalf last rotation
Sequence
ITB home position signal
Fixing motor (M2)
Drum Motor (M3)
Toner cartridge motor (M4)
Developing rotary motor (M5)
Primary charging bias (AC)
Primary charging bias (DC)
Developing bias (AC)
Developing bias (DC)
Secondary transfer roller contact clutch (CL4)
ITB unit contact clutch (CL2)
Toner level sensor
Scanner motor
Laser drive
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
WAIT
0.05
Density detection control
sequence command
2.49 7.50 3.75 3.75 3.75
0.2
0.75
0.2
0.75
0.2
0.75
0.2
0.75
0.2 0.2
0.42 0.42 0.42 0.42
2.86
2.36
2.96
0.24 1.14
2.41
1.1
3.7 3.7
1.1
3.7 3.7
3.86
3.86
3.86
3.86
2.25 2.74 2.74 2.74
1.92 1.76
2.42 1.68
0.42
1.1 1.1 1.1 1.1
1.1 1.1
(Unit: second)