Electrophotographic method for producing multiple copies from th

Details Electrophotographic method for producing multiple copies from th Electrophotographic method for producing multiple copies from th

1974-12-26

1976-06-08

Brammer, Jack P.

Gas separation: apparatus

Magnetic separating means

427 24, G03G 1314

Patent

active

039619516

ABSTRACT:
An electrophotographic method is disclosed which produces multiple electrophotograhic copies from the same electrostatic image by multiply cycling the electrostatic image through development and transfer steps. To reduce copy density losses in subsequent copies, the biasing potential applied across the development zone is reduced on subsequent cycles of the electrostatic image through the development zone.

REFERENCES:
patent: 3203394 (1965-08-01), Hope et al.
patent: 3363555 (1968-01-01), Olden
patent: 3473923 (1969-10-01), Ohkubo et al.
patent: 3837741 (1974-09-01), Spencer
patent: 3862848 (1975-01-01), Marley

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