Electrophotographic process using photoconductive cylinder of sm

Details Electrophotographic process using photoconductive cylinder of sm Electrophotographic process using photoconductive cylinder of sm

1986-09-29

1988-08-02

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

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

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

430 31, G03G 1322

Patent

active

047613599

ABSTRACT:
There is disclosed an electrophotographic process adapted for using a cylindrical photosensitive member of a small diameter of 40 mm or less which has such a charging characteristic that when it is charged to 700 V (or -700 V) and then exposed to such an intensity of light as to provide a potential of 200 V (or -200 V) after exposure for 50 msec., the photosensitive member will have a potential of 20 to 150 V (or -20 to -150 V) after exposure for 150 msec. In the process, the steps of charging, exposure, developing and transfer involved, and the following relationship is satisfied: R.theta./v.gtoreq.0.30, wherein R (mm) is the outer diameter of the cylindrical photosensitive member, .theta. (radian) is the angle formed between the exposure and the developing position on the cylindrical photosensitive member with respect to the center thereof as the angle center, and v (mm/sec) is the circumferential speed of the cylindrical photosensitive member. By the process, undesirable increase in residual potential on the photosensitive member to solve the problems of increasing image density and fog during successive copying.

REFERENCES:
patent: 4591258 (1986-05-01), Nishino et al.

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