FS-1030D Service Manual - kyocera
FS-1030D Service Manual - kyocera
FS-1030D Service Manual - kyocera
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2G6<br />
(5) Transfer<br />
The image developed by toner on the drum (A) is transferred onto the paper because of the electrical attraction between<br />
the toner itself and the transfer roller (B). The transfer roller is negatively biased so that the positively charged toner is<br />
attracted onto the paper while it is pinched by the drum and the transfer roller.<br />
(A)<br />
Transfer bias<br />
(B)<br />
High voltage unit<br />
CN2-A6<br />
CN2-A5<br />
YC-T<br />
CN2-A7<br />
CN2-A8<br />
Bias<br />
PWB<br />
RTHVDR<br />
THVDR<br />
HVISEL<br />
PSEL1<br />
YC12-16<br />
YC11-2<br />
YC12-14<br />
YC12-11<br />
Engine PWB<br />
Figure 2-1-14 Transfer<br />
The nominal transfer bias is set to approximately -1.8 kV (limit) with the -6 µA current. Since the ideal potential of the<br />
transfer bias depends on the thickness of paper, the bias is raised to approximately -2.5 kV/-6 µA for thicker paper. On<br />
the other hand, the bias current is reduced to -1.8 kV/-6 µA for thin paper.<br />
2-1-14
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