Xerographic process without conventional cleaner

Details Xerographic process without conventional cleaner Xerographic process without conventional cleaner

1987-08-03

1989-01-24

Prescott, A. C.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

118652, 355300, 355 15, 430 54, G03G 2100, G03G 1506, G03G 1500, G03G 1300

Patent

active

048001473

ABSTRACT:
The invention is an electrophotographic imaging process comprising forming a first electrostatic latent image on an imaging surface of an electrophotographic imaging member comprising an electrophotographic insulating layer and an electrically conductive layer, developing said first electrostatic latent image with a conductive two-component developer having a conductivity between about 10.sup.-10 ohms-cm.sup.-1 and about 10.sup.-14 ohms-cm.sup.-1 in a development zone between said imaging surface and an electrically conductive developer applicator to form a toner image corresponding to said first electrostatic latent image, transferring most of said toner image to a receiving member with a residual toner image remaining on said imaging surface forming a second electrostatic latent image on said imaging surface bearing said residual toner image, and simultaneously developing said second electrostatic latent image and removing said residual toner image by contacting said electrophotographic imaging surface in said development zone with conductive two-component developer while simultaneously maintaining the minimum distance between said electrically conductive layer and said electrically conductive developer applicator in said development zone, supplying an electrical bias to said electrically conductive layer, and supplying an electrical bias to said conductive developer applicator.

REFERENCES:
patent: 3615398 (1971-10-01), Caldwell
patent: 3640707 (1972-02-01), Caldwell
patent: 3649262 (1972-03-01), Cade et al.
patent: 4265998 (1981-05-01), Barkley
patent: 4470693 (1984-09-01), Dolan
Xerox Disclosure Journal, vol. 7, No. 3, May/Jun. 1982, p. 211, "Developer/Cleaner for Magnetic Toner with Enhanced Performance".

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