Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1978-05-01
1980-11-11
Wolff, John H.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
G03G 1500
Patent
active
042336120
ABSTRACT:
An image information device of a construction wherein there are provided a laser oscillator; a modulator capable of modulating a laser beam oscillated from the laser oscillator by an external signal; a photosensitive body consisting essentially of an insulating layer, a photoconductive layer, and an electrically conductive substrate; a principal scanning means such as a polygonal revolving mirror, galvano-mirror, etc. to cause the modulated laser beam to scan the photosensitive body in the principal scanning direction; an optical system to cause the laser beam to focus on the photosensitive body; a position detection means to establish a commencing position of the scanning laser beam on the photosensitive body; means to input an image signal into the modulator in synchronism with the principal scanning means by an output from the position detection means; means to electrically charge the photosensitive body; corona discharge means to impress on the photosensitive body an A.C. corona discharge or a D.C. corona discharge having an opposite polarity to the above-mentioned electric charge simultaneously with, or immediately before, or immediately after, the scanning of the photosensitive body with the laser beam; means to effect overall exposure of the photosensitive body; means to develop an electrostatic latent image formed by the abovementioned means; means to transfer the latent image onto an image transfer material; and means to clean the photosensitive body.
REFERENCES:
patent: 3389403 (1968-06-01), Cottingham et al.
patent: 3448458 (1969-06-01), Carlson et al.
patent: 3457070 (1969-07-01), Watanabe
patent: 3609031 (1971-09-01), Kinoshita
patent: 3687025 (1972-08-01), Rosin
patent: 3747119 (1973-07-01), Matkan
patent: 3776627 (1973-12-01), Ohnishi
patent: 3800303 (1974-03-01), Picquendar et al.
patent: 3818492 (1974-06-01), Matkan
IBM/TDB vol. 10, No. 9, Feb. 1968, "High Speed Buffer, Display, and Printer," by Supernowicz.
Hirayama Kazuhiro
Iwatate Fujio
Kawakubo Kazuo
Nakatsui Hisashi
Sato Yasushi
Canon Kabushiki Kaisha
Wolff John H.
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