Recording device such as electronic blackboard

Details Recording device such as electronic blackboard Recording device such as electronic blackboard

1987-07-14

1988-06-21

Prescott, A. C.

Photocopying

Including fiber optics

355 3BE, 355 5, 355 16, 355 19, 355 78, G03G 1500

Patent

active

047528001

ABSTRACT:
A recording device such as an electronic blackboard has a transparent and flexible drawing sheet in an endless form which stretches around a pair of parallel rollers and on which characters and figures can be erasably drawn. A uniformly charged photosensitive sheet is disposed behind this stretched drawing sheet and light is made incident thereon through the drawing sheet such that a latent image is formed on the photosensitive sheet corresponding to the characters and figures on the drawing sheet. A printed copy of this latent image is obtained by the known electrophotographic technique.

REFERENCES:
patent: 4167326 (1979-09-01), Payne
patent: 4174175 (1979-11-01), DiMaria
patent: 4387984 (1983-06-01), Sato
patent: 4569581 (1986-02-01), Sato
patent: 4600296 (1986-07-01), Hage
patent: 4646164 (1987-02-01), Kishi
patent: 4687318 (1987-08-01), Shibasaki et al.

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