Black-and-white and color copier operable at different processin

Details Black-and-white and color copier operable at different processin Black-and-white and color copier operable at different processin

1989-08-28

1991-04-23

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355243, 355271, 355327, G03G 2100

Patent

active

050103725

ABSTRACT:
In a copying machine for both black-and-white and color, a latent image of an original is formed in a photosensitive device by scanning the original by a scanning optical system and is developed by a black or color toner and is thereafter transferred onto a transfer paper held on transfer device rotated in proximity to the photosensitive device to provide a copy of the original. The copying machine includes a first drive unit for driving the scanning optical system; a second drive unit for driving the photosensitive device; a third drive unit for driving the transfer device; and a drive condition setting device for judging a designated copy mode and for giving the speeds of the respective drive units which are suitable for the designated copy mode.

REFERENCES:
patent: 4367942 (1983-01-01), Ohtsuka
patent: 4571061 (1986-02-01), Osanai et al.
patent: 4601568 (1986-07-01), Takano et al.
patent: 4705386 (1987-11-01), Ogita et al.
patent: 4723146 (1988-02-01), Kashara
patent: 4733269 (1988-03-01), Kasahara et al.

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