Perforation and image exposure system

Details Perforation and image exposure system Perforation and image exposure system

2005-07-12

2005-07-12

Rutledge, D. (Department: 2851)

Photocopying

Contact printing

Exposing on sensitized printing press plate or cylinder

C355S040000, C355S086000, C101S415100, C101S463100, C101S477000

Reexamination Certificate

active

06917413

ABSTRACT:
A perforation and image exposure system comprises an image exposure apparatus and a punch unit. The image exposure apparatus has a first reference pin for defining a lateral position of a plate through contacting with one side edge of the plate contacting a pair of first positioning pins, and image exposure means for exposing the image into the plate subjected to positioning by the pair of first positioning pins and the first reference pin. The punch unit has a second reference pin for defining a lateral position of the plate through contacting with one side edge of the plate contacting a pair of second positioning pins, and perforation means for forming punched holes for positioning on the plate subjected to positioning by the pair of second positioning pins and the second reference pin. The image exposure apparatus and the punch unit keep relative positions of three pins of the pair of first positioning pins and the first reference pin and relative positions of three pins of the pair of second positioning pins and the second reference pin at same positions.

REFERENCES:
patent: 5255607 (1993-10-01), Nishiyama et al.
patent: 5390001 (1995-02-01), Ishiwata et al.
patent: 6170396 (2001-01-01), Naniwa et al.
patent: 6474236 (2002-11-01), Naniwa et al.
patent: 6766742 (2004-07-01), Hashiguchi
patent: 2005/0028699 (2005-02-01), Kan et al.
patent: 2001-356489 (2001-12-01), None
patent: 2003-95489 (2003-04-01), None

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