Electrophotographic apparatus having cleaning device and develop

Details Electrophotographic apparatus having cleaning device and develop Electrophotographic apparatus having cleaning device and develop

1995-10-24

1997-08-05

Royer, William J.

Electrophotography

Internal machine environment

Particle or contaminant control

399103, G03G 1508, G03G 2100

Patent

active

056551789

ABSTRACT:
A developing device used in an electrophotographic apparatus has seal members fixedly disposed between both end portions of a developing roller and those portions of inner walls of a device casing which correspond to both end portions of the developing roller. The seal members are made of a material which can be charged by friction with the developing roller to have the same polarity as charged toner. The toner is blocked by the seal members and presented from entering end portions of the developing roller.

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patent: 5502547 (1996-03-01), Shirai

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