Electrophotography

Details Electrophotography Electrophotography

1975-11-03

1977-10-04

Martin, Jr., Roland E.

Gas separation: apparatus

Magnetic separating means

355 3R, 346160, G03Q 1322

Patent

active

040522067

ABSTRACT:
Electrophotography which employs a recording medium prepared by providing a photoconductor layer and a transparent electrical insulator layer on a support. In the electrophotography, a latent charge image is formed on the surface of the insulator layer of the recording medium by the steps of uniformly applying charges of one polarity to the recording medium in a dark place, exposing the recording medium to light reflected from an original image while applying charges of the same polarity to the recording medium at the same time, applying charges of opposite polarity to the recording medium in the dark place, and uniformly exposing the entire surface of the insulator layer of the recording medium to light.

REFERENCES:
patent: 3457070 (1969-07-01), Watanabe et al.
patent: 3615395 (1971-10-01), Yamaji et al.
patent: 3653064 (1972-03-01), Inoue et al.
patent: 3666364 (1972-05-01), Marushima
patent: 3676117 (1972-07-01), Kinoshita
patent: 3677751 (1972-07-01), Ohta et al.
patent: 3730709 (1973-05-01), Kinoshita et al.
patent: 3775104 (1973-11-01), Matsumoto et al.
patent: 3776627 (1973-12-01), Ohnishi et al.
patent: 3797928 (1974-03-01), Kinoshita et al.
patent: 3930850 (1976-01-01), Matsumoto et al.

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