Apparatus and methods for suppressing photoreceptor image ghost

Details Apparatus and methods for suppressing photoreceptor image ghost Apparatus and methods for suppressing photoreceptor image ghost

2009-02-27

2011-10-04

Tran, Hoan (Department: 2884)

Electrophotography

Image formation

Charging

Reexamination Certificate

active

08032059

ABSTRACT:
The presently disclosed embodiments are directed to charging devices which produce a negative corona. The present embodiments pertain to the use of a positive charging device, such as a scorotron, after the erase lamp and before negative charging station in the xerographic cyclic to mitigate the undesirable changes in charge transport layer electrical properties that result from exposure to corona while negatively charging the photoreceptor during latent image formation.

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patent: 5600430 (1997-02-01), Folkins et al.
patent: 6167224 (2000-12-01), Dalal
patent: 7424250 (2008-09-01), Markovics et al.
patent: 7904012 (2011-03-01), Kobashi et al.

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