Electrophotography – Cleaning of imaging surface – Fibrous brush
Reexamination Certificate
2005-10-11
2005-10-11
Brase, Sandra L. (Department: 2852)
Electrophotography
Cleaning of imaging surface
Fibrous brush
C399S349000
Reexamination Certificate
active
06954609
ABSTRACT:
An electrophotographic apparatus comprises a photosensitive member, exposing means, and cleaning means for cleaning a residual developer from the photosensitive member, which comprises a cleaning brush brought into contact with the photosensitive member. In this case, a brush density of the cleaning brush is D (number/mm2), and an area of a pixel of an electrostatic image is S (mm2/dot), and D×S≧0.06 and D≦200 are satisfied. Thus, an image forming apparatus is provided, in which cleaning stability is improved by uniformly scraping off and dispersing the transfer residual developer from the photosensitive member.
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Brase Sandra L.
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
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