Electrostatographic machine with screening

Details Electrostatographic machine with screening Electrostatographic machine with screening

1989-05-15

1990-10-23

Moses, R. L.

Photocopying

Contact printing

Light boxes

355211, G03G 1522, G03G 1532

Patent

active

049656368

ABSTRACT:
Each region of a photoconductive member receives an electrostatic charge over a predetermined time period. An electrostatic latent half-tone pattern image is screened on the photoconductive member such that exposure of the photoconductive member to a light pattern of a continuous tone original document will form a half-tone latent image on the photoconductive member. The screened image is formed during the predetermined time period that each region of the photoconductive member is being charged such that the half-tone pattern is partially charged over.

REFERENCES:
patent: 3985432 (1976-10-01), Hou et al.
patent: 4044671 (1977-08-01), Hou et al.
patent: 4168974 (1979-09-01), Ando et al.
patent: 4262075 (1981-04-01), Noda et al.
patent: 4335194 (1982-06-01), Sakai
patent: 4494856 (1985-01-01), Aoki et al.

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