Image forming apparatus having a controller that controls a...

Details Image forming apparatus having a controller that controls a... Image forming apparatus having a controller that controls a...

2011-03-08

2011-03-08

Gray, David M (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

C399S187000, C399S198000

Reexamination Certificate

active

07903990

ABSTRACT:
In a development device which develops an electrostatic image formed on a rotating photosensitive drum by applying a development bias to a development sleeve bearing a two-component developer, the development device includes a specific pattern determination portion which determines whether or not the electrostatic image includes a specific pattern. When the development device develops the specific pattern electrostatic image determined by the specific pattern determination portion, a potential difference between a development sleeve and a first non-image part of a predetermined range which is adjacent to the specific pattern electrostatic image and located on an upstream side in a photosensitive drum rotating direction is set smaller than a potential difference between the development sleeve and a second non-image part which is different from the first non-image part.

REFERENCES:
patent: 5153609 (1992-10-01), Ando et al.
patent: 5765089 (1998-06-01), Hasuo et al.
patent: 6160979 (2000-12-01), Shoji
patent: 7161712 (2007-01-01), Maruta et al.
patent: 7260347 (2007-08-01), Tamaki et al.
patent: 2000-206794 (2000-07-01), None

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