Electrophotography – Having particular structure – Modular or displaceable
Reexamination Certificate
2011-03-15
2011-03-15
Gray, David M (Department: 2852)
Electrophotography
Having particular structure
Modular or displaceable
C399S168000, C399S171000
Reexamination Certificate
active
07907869
ABSTRACT:
A charging brush unit includes a brush and a conductive holder. The brush includes a plurality of flexible conductive fibers. The plurality of flexible conductive fibers is supplied with a charging bias to generate electrical discharge between a top of the plurality of conductive fibers and a latent image carrier across a gap formed between the top of the plurality of conductive fibers and the latent image carrier. The gap is provided with an electrode. The electrode includes a plurality of openings opposing the top of the plurality of conductive fibers and is supplied with a bias different from the charging bias applied to the plurality of conductive fibers. The conductive holder holds the brush.
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Bannai Kazunori
Fujiwara Hidehiko
Takenaka Kohta
Wakabayashi Yu
Gray David M
Hyder G. M.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh Company Limited
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