Electrophotographic apparatus and method of cleaning the same

Details Electrophotographic apparatus and method of cleaning the same Electrophotographic apparatus and method of cleaning the same

1991-03-12

1992-04-07

Grimley, A. T.

Photocopying

Contact printing

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355296, 118652, 430125, G03G 2100

Patent

active

051032660

ABSTRACT:
A method of cleaning a photosensitive member in an electrophotographic apparatus in which an electrophotographic operation is performed by charging the photosensitive member with a predetermined voltage, exposing the charged photosensitive member so as to form a latent image thereon and developing the latent image by use of toner, includes the steps of charging the photosensitive member with a half tone level voltage which is smaller than the predetermined voltage, and developing the charged photosensitive member by use of toner without exposing the charged photosensitive member, so as to form a uniform half tone toner image thereon. The cleaning method also includes the step of scraping off the toner of the uniform half tone toner image from the photosensitive member by a blade abutting thereto.

REFERENCES:
patent: 4788572 (1988-11-01), Slayton et al.

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