Photocopying – Contact printing – Light boxes
Patent
1990-05-23
1991-05-07
Moses, R. L.
Photocopying
Contact printing
Light boxes
355 77, 430 42, 358 75, G03G 1501
Patent
active
050140930
ABSTRACT:
Apparatus and method are described for copying with high productivity a mixed batch of originals containing for example process color originals accent color originals and/or single color originals such as black. A scanner scans the originals for color content and ascertains the number of image frames required to reproduce the original. Imaging is then only made on the number of image frames required for reproduction of that original. Scanning is performed with a relatively low resolution scanner. Thus, a "process" black original, made by the combination of three color toners, may be identified as black only even if the colors thereon are not perfectly registered. Such a black only original is reproduced using only one image frame and developed with black only toner thereby providing high productivity and improved quality over the original. The apparatus and method of the invention are preferably achieved using electrophotographic reproduction techniques.
REFERENCES:
patent: 4642681 (1987-02-01), Ikeda
patent: 4655579 (1987-04-01), Adachi et al.
patent: 4711553 (1987-12-01), Watanabe
patent: 4739377 (1988-04-01), Allen
patent: 4777510 (1988-10-01), Russel
patent: 4803516 (1988-02-01), Watanabe et al.
patent: 4970562 (1990-11-01), Birnbaum et al.
Eastman Kodak Company
Moses R. L.
Rushefsky Norman
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