Method and apparatus for image formation utilizing a blocking me

Details Method and apparatus for image formation utilizing a blocking me Method and apparatus for image formation utilizing a blocking me

1981-07-21

1984-04-10

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Using ion or particle flow modulation

355 3SC, G03G 1302

Patent

active

044421907

ABSTRACT:
An image forming technique employing a screen photosensitive medium having therein a plurality of fine openings. Using such screen photosensitive medium an electrostatic latent image is formed on an electric charge retainable member to be modulated under the action of a modulated corona ion stream. A non-image area can be formed on the member to be modulated by providing an ion stream blocking member between a modulation ion source and the screen photosensitive medium to block the ion stream flowing from the ion source to the screen photosensitive medium at a desired and limited area. The present invention enables to form a very sharp boundary between image area and non-image area.

REFERENCES:
patent: 3594162 (1971-07-01), Simm et al.
patent: 3942080 (1976-03-01), Milewski
patent: 4105444 (1978-08-01), Shinohara et al.
patent: 4141644 (1979-02-01), Sato et al.
patent: 4174170 (1979-11-01), Yamamoto et al.

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