Electrophotography – Image formation – Charging
Reexamination Certificate
2008-07-29
2008-07-29
Gray, David M (Department: 2852)
Electrophotography
Image formation
Charging
C399S286000, C399S313000
Reexamination Certificate
active
11139586
ABSTRACT:
A conductive rubber roller10has a conductive rubber layer1, containing chloroprene rubber, and composes an outermost layer thereof. When an alternating current is applied to the conductive rubber roller10at a voltage of five and a frequency of 100 Hertz, the dielectric loss tangent is 0.1 to 1.8.
REFERENCES:
patent: 2004/0110617 (2004-06-01), Mizumoto
patent: 1503065 (2004-06-01), None
patent: 2001-357735 (2001-12-01), None
patent: 2002-194203 (2002-07-01), None
patent: 2004042836 (2004-05-01), None
Birch & Stewart Kolasch & Birch, LLP
Gray David M
Sumitomo Rubber Industries, ltd.
Walsh Ryan D.
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