Color image electrophotographic apparatus for printing long-size

Details Color image electrophotographic apparatus for printing long-size Color image electrophotographic apparatus for printing long-size

1991-07-24

1992-11-17

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355326, 358450, G03G 1514, G03G 1501

Patent

active

051647818

ABSTRACT:
Each of color toner images is formed on a photo-sensitive drum using a plural development units. An exposure process and a development process for a color image information are carried out repeatedly corresponding to a respective hue of the image information. The toner images of n colors are transferred to the drum by contacting a recording paper to the drum. A record mode is selected in accordance with a length in a peripheral direction of the drum of the image information against a peripheral length of the drum. When the length of the image information is longer than the peripheral length of the drum, N times transfer processes are selected as the record mode. Then the length of the image information is divided into N areas. The image information of n colors existing in every divided area is formed dividedly on the drum. The color image is recorded on a full length of the paper. Besides, when the length of the image information is shorter than the peripheral length of the drum, one time transfer process is selected as the record mode.

REFERENCES:
patent: 4595273 (1986-06-01), Watanabe et al.
patent: 4615607 (1986-10-01), Yanagawa et al.
patent: 4631596 (1986-12-01), Yaguchi
patent: 4827315 (1989-05-01), Wolfberg et al.
patent: 4924324 (1990-05-01), Takaoka
patent: 4933727 (1990-06-01), Mizuma et al.
patent: 4998145 (1991-03-01), Haneda et al.

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