Printing plate registration and optical alignment device...

Details Printing plate registration and optical alignment device... Printing plate registration and optical alignment device...

2005-08-16

2008-11-25

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S559300

Reexamination Certificate

active

07456379

ABSTRACT:
A method and apparatus for determining the alignment of printing plate mounted on an imaging drum, and applying an image to a printing plate while maintaining registration and alignment between the image and a reference edge of the printing plate include mounting the printing plate on a plate making machine and then determining the locations of at least one point on the reference edge. The locations of two or more points are used to determine a transformation that is applied to image data to yield transformed image data. The transformed image data is used to image the printing plate.

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