Photocopying – Contact printing – Light boxes
Patent
1994-03-09
1996-10-08
Coles, Sr., Edward L.
Photocopying
Contact printing
Light boxes
355 40, G06K 1500
Patent
active
055639844
ABSTRACT:
When printing images as ordinary prints on a photosensitive material, index prints are also automatically printed of a same size as the ordinary prints for higher work efficiency. At a projection exposure stage, exposure of a film is effected to obtain ordinary prints using a light source, a lens and a shutter. Also, data of images on the film is read by an optical reader and converted into digital signals. Index prints are then exposed by a PLZT print head which is controlled based on the digital signals.
REFERENCES:
patent: 4903068 (1990-02-01), Shiota
patent: 4933773 (1990-06-01), Shiota et al.
patent: 4951086 (1990-08-01), Hicks
patent: 5184227 (1993-02-01), Foley
patent: 5204707 (1993-04-01), Harvey
patent: 5289229 (1994-02-01), Manico et al.
patent: 5404196 (1995-04-01), Terashita et al.
Patent Abstracts of Japan, vol. 12, No. 464(M-771) Dec. 6, 1988.
Coles Sr. Edward L.
Legree Tracy M.
Noritsu Koki Co., Ltd.
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