FS-1030D Service Manual - kyocera
FS-1030D Service Manual - kyocera
FS-1030D Service Manual - kyocera
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2G6<br />
(2-2) Charging the drum<br />
The following shows a simplified diagram of the electrophotographic components in relation to the engine system.<br />
Charging the drum is done by the main charger unit (A).<br />
High voltage unit<br />
YC-M CN2-A4<br />
CN2-A9<br />
MHVDR<br />
PSEL2<br />
Bias<br />
PWB<br />
MHVDR1<br />
MHVDR2<br />
Engine PWB<br />
YC11-5<br />
YC12-9<br />
Main charging output<br />
(B)<br />
(A)<br />
(C)<br />
Zenner<br />
PWB<br />
KP-1109<br />
Figure 2-1-9 Charging the drum<br />
As the drum (C) rotates in a “clean (neutral)” state, its photoconductive layer is given a uniform, positive (+) corona<br />
charge dispersed by the main charger wire (B).<br />
Due to high-voltage scorotron charging, the charging wire can get contaminated by oxidization after a long run.<br />
Therefore, it must be cleaned periodically from time to time. Cleaning the charging wire prevents print quality problems<br />
such as black streaks.<br />
2-1-9
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