Electrographic imaging apparatus and method

Details Electrographic imaging apparatus and method Electrographic imaging apparatus and method

1977-06-09

1979-03-13

Envall, Jr., R. N.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

G03G 1510

Patent

active

041439627

ABSTRACT:
Apparatus and method for imagewise controlling the flow of ions from a source toward an electrostatic image-bearing member utilize a predeterminedly electrically-biased slit means located between the ion source and the member. A portion of the slit means is maintained at a potential intermediate the image and background portions of the electrostatic image and so that ion flow toward the member is controlled in accordance with the image thereon. A substantially neutrally-charged mist is introduced between the slit means and the image-bearing member and charged and attracted to the member in accordance with the image.

REFERENCES:
patent: 3779166 (1973-12-01), Pressman
patent: 4045217 (1977-08-01), Fujimura

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