Printing process and system for ascertaining register defects
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United States of America Patent
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Dec 29, 2015
Grant Date -
Sep 27, 2012
app pub date -
Mar 26, 2012
filing date -
Mar 24, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Printing material printing processes generate a raster bit map manipulated by matrix manipulation to compensate for geometrical distortions of the printed image on the printing material. First of all, the same correction functions are used for following raster bit maps, if the intention is to dispense with the imaging of test printing forms. Measuring marks are also printed, while printing is underway, at fixed positions on a sheet to establish any present register defects. Different repeat configurations for follow-up printing means that it is no longer possible for the measuring marks to be provided at the same positions. The ascertained deviations are used to interpolate adjusted deviations at the first positions for the first measuring marks to make it possible to use the second measuring marks at the shifted positions. Further technical measures are then implemented on this basis. A printing system for printing a printing material is also provided.
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