Photographic printing apparatus and an image forming method

Details Photographic printing apparatus and an image forming method Photographic printing apparatus and an image forming method

1995-06-12

1997-02-18

Grimley, Arthur T.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 53, G03B 2754

Patent

active

056045662

ABSTRACT:
In a method of printing an original image on a photographic paper with an exposure device, the exposure device has an reference exposure light, an image corresponding to the original image is formed on a mask sheet and the photographic paper is printed by exposure lights passing through the mask sheet under the reference exposure light, wherein image signals from the original image are processed so as to satisfy the condition that the mask sheet is used under the reference exposure light.

REFERENCES:
patent: 4739373 (1988-04-01), Nishi et al.
patent: 4814891 (1989-03-01), Uchiyama et al.
patent: 4981765 (1991-01-01), Mizuguchi
patent: 5087938 (1992-02-01), Nagumo et al.
patent: 5252989 (1993-10-01), Kawakami et al.
patent: 5296890 (1994-03-01), Clapp
patent: 5419989 (1995-05-01), Takimoto et al.

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