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CHAPTER 8 FIXING SYSTEM
8-24
COPYRIGHT
©
1999 CANON INC. CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
IV . CONTROLLING THE FIXING ROLLER BIAS
A. Outline
The fixing roller bias is controlled for the following:
[1] Fixing roller bias constant voltage
Figure 8-401 shows the construction of the control system used to control the fixing roller bias.
Figure 8-401 Construction of the Control System
DC controller PCB
J510A
DC 600V
J723
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
0 V
24 VH
24 VH
HVDC-EN
FGD-ON
High-voltage DC PCB
GND
GND
1
2
3
4
Relay PCB
J733
1
2
When '1', high-voltage output is ready.
When '1', the fixing roller bias turns on.
Fixing roller