Electrophotography – Image formation – Charging
Reexamination Certificate
2007-11-27
2007-11-27
Brase, Sandra L. (Department: 2852)
Electrophotography
Image formation
Charging
C399S173000
Reexamination Certificate
active
11226327
ABSTRACT:
A charging apparatus having high durability, with no occurrence of rusts or the like, scarcely impaired for the controllability of the charged potential even when contaminants such as a toner are deposited more or less, capable of stably controlling the charged potential on the photoreceptor in an appropriate range for a long time and being inexpensive as well, is provided. A charging apparatus includes a needle electrode, a holding member, two cleaner members, a support member, a moving member, a shield case, and a grid electrode. In the charging apparatus, a nickel plating layer containing polytetrafluoroethylene particles is formed on the surface of the grid electrode.
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Deguchi Masanobu
Matsuyama Kazuhiro
Brase Sandra L.
Nixon & Vanderhye P.C.
Sharp Kabushiki Kaisha
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