Photocopying – Contact printing – Light boxes
Patent
1991-01-24
1991-12-03
Grimley, A. T.
Photocopying
Contact printing
Light boxes
346157, 355327, G03G 1501
Patent
active
050703676
ABSTRACT:
A color image forming apparatus includes an image reading section which reads an image by scanning it and separating the colors of the image into a plurality of colors; and image processing section which processes the output of the image reading section and outputs the image information of these colors; a recording section which forms an image of these colors in the image region of a photoreceptor according to the image information and transfers the image onto a recording paper; an operating section which sets the copy conditions and controls the above-described sections, wherein the image forming apparatus can copy the document image according to an automatic color selection mode in which the color conditions of the document image is judged, and a color to be used and a copy process in accordance with the color to be used can be automatically determined. When the color image forming apparatus described above is in the automatic color selection mode, the first scanning is conducted for one of these colors described above and the necessity of image forming of other colors is judged during the first scanning.
REFERENCES:
patent: 4690543 (1987-09-01), Watanabe
patent: 4711553 (1987-12-01), Watanabe
patent: 4803516 (1988-02-01), Watanabe et al.
patent: 4970562 (1990-11-01), Birnbaum et al.
Maruyama Hiroyuki
Murahashi Takashi
Sugano Masahi
Yokobori Jun
Grimley A. T.
Konica Corporation
Royer William J.
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