Pre-Transfer Charging Mechanism; Outline - Canon iR7086 Series Service Manual

Chapter 7
When '1', high-voltage output is ready.
J510A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

7.5.3 Pre-Transfer Charging Mechanism

7.5.3.1 Outline

iR7105 / iR7095 / iR7086
The following items are associated with the pre-transfer charging control system:
[1] DC bias constant current control
[2] AC bias constant voltage control
[3] output control suited to environment (fuzzy control)
The following shows the components related to the pre-transfer charging control system:
7-14
18
J723
17
0 V
16
HVDC-REMOTE
15
14
13
12
11
10
When '1', the dust-collecting
9
roller bias goes on.
8
7
6
5
4
3
2
1
Relay PCB
J721
1 2 3 4
J732
1
2
3
F-7-19
DC 285V
Dust-collecting roller
0010-8054