Electrophotography – Control of electrophotography process – Control of charging
Reexamination Certificate
2007-09-04
2010-06-15
Gray, David M (Department: 2852)
Electrophotography
Control of electrophotography process
Control of charging
C399S175000
Reexamination Certificate
active
07738803
ABSTRACT:
An image forming apparatus, performing a corresponding method of image forming, includes an image carrier, a writing unit, a developing unit, a charging member configured to rotate continuously with the image carrier at a portion contacting the image carrier and uniformly charge a surface of the image carrier while contacting a surface thereof with the surface of the image carrier, a charge bias applying unit configured to apply a charge bias to the charging member, and a controller configured to control of driving of the image carrier and the charging member and reduce at a charge nip at a given timing a linear velocity ratio of a travel speed of the surface of the charging member to a travel speed of the surface of the image carrier.
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Machine Translation of JP 2003-122098 A.
Translation of JP 59-033467 A.
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Fujita Tetsumaru
Nagatomo Yuji
Sakagawa Yoshio
Curran Gregory H
Gray David M
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh Company Limited
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