Duplicating apparatus employing modulator screen cylinder

Details Duplicating apparatus employing modulator screen cylinder Duplicating apparatus employing modulator screen cylinder

1976-01-16

1977-08-30

Burr, Edgar S.

Printing

Stenciling

Processes

101116, 101DIG13, 346153, 355 3R, B41F 1508

Patent

active

040446719

ABSTRACT:
A duplicating apparatus is equipped with a photoconductive modulator screen cylinder for making reproductions of a graphic original on a dielectric receiving medium utilizing aperture-controlled electrostatic printing techniques. Means is provided for creating a charge distribution system on the surface of the modulator corresponding to an image to be reproduced from the graphic original. The apparatus also comprises charging means for projecting gas ions against the modulator screen cylinder, electrode means for collecting the gas ions selectively transmitted by the modulator screen cylinder on the dielectric receiving medium and means for developing the dielectric receiving medium to create a visible image.

REFERENCES:
patent: 2590321 (1952-03-01), Huebner
patent: 3402658 (1968-09-01), Opdycke
patent: 3647291 (1972-03-01), Pressman et al.
patent: 3779166 (1973-12-01), Pressman et al.
patent: 3788221 (1974-01-01), Borneman
patent: 3898085 (1975-08-01), Suzuki et al.

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