COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-103
3. OPERATION AND TIMING
2. Controlling the Developing Bias
The developing bias applied to the developing cylinder is a combination of an AC bias and a DC bias. A
DC bias is generated by the transformer on the HVT3A, and an AC bias is generated by the HVT3A based on
±1 kV generated by the transformer on the HVT3B. (The AC bias is generated so that it assumes the wave
forms shown in Figure 3-528.) Both DC and AC biases are controlled by control signals from the DC
controller for application.
The DC bias to the stray toner collecting electrode is generated by the HVT3B and sent in response to
control signals.
Figure 3-527
Figure 3-528
HVT3B
Control signal
Developing bias
Bk
Bk
Y
M
C
C
DC controller PCB
HVT3A (rear)
M
Y
+1kV
+1kV
-1kV
HVT3A (front)
-1kV
Transformer for +1kV
Transformer or
stray toner
collecting electrode
Transformer for DC
Transformer for DC
Transformer for -1kV
Stray toner
collecting
electrode
0V
AC bias
Change by DC bias
Содержание Vizcam 1000
Страница 12: ......
Страница 30: ......
Страница 44: ......
Страница 86: ......
Страница 254: ......
Страница 372: ......
Страница 374: ......
Страница 418: ......
Страница 438: ......
Страница 442: ......
Страница 754: ......
Страница 764: ......
Страница 766: ......
Страница 840: ...0501GR PRINTED IN JAPAN IMPRIME AU JAPON This publication is printed on 100 reprocessed paper...