Method and apparatus for forming an electrostatic latent image u

Details Method and apparatus for forming an electrostatic latent image u Method and apparatus for forming an electrostatic latent image u

1977-04-19

1978-10-31

Moses, R. L.

Photocopying

Including fiber optics

96 1R, 355 3CH, G03G 1500

Patent

active

041231562

ABSTRACT:
Improved method and apparatus for forming an electrostatic latent image on a recording medium by the simultaneous projection of an ion current and exposure to image light, in which a control grid for controlling the ion current has a plurality of layers, including a photoconductive layer, a conductive layer, and an insulating layer. A first bias voltage is applied to the conductive layer to form an electric field which directs the ion current toward the recording medium, and a second bias voltage, higher than the first bias voltage, forms a second electric field in the control grid for controlling passage of the ions. The recording medium is adapted to absorb the image light thereon.

REFERENCES:
patent: 3867673 (1975-02-01), Crane et al.
patent: 3880513 (1975-04-01), Fotland

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