Automated method and apparatus for vision registration of graphics areas operating from the unprinted side
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United States of America Patent
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Nov 28, 2006
Issued Date -
N/A
app pub date -
May 5, 2004
filing date -
May 5, 2004
priority date (Note) -
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Abstract
A method and apparatus are disclosed for performing finishing operations on at least one graphics area on a graphics sheet, the graphics sheet having a graphics side, an opposite process side, and reference features, the graphics side bearing the graphics area(s) and registration marks in predetermined positions with respect to the graphics area(s). The method comprises positioning the graphics sheet on a sheet-receiving surface, sensing from the graphics side the positions of the registration marks, determining the coordinates of the graphics area(s) with respect to the sheet-receiving surface as if viewable from the process side, and performing finishing operations on the process side of the graphics sheet based on such determination, whereby such process-side finishing operations compensate for variations of the graphics area(s).
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