Aligning print data for overlapping printheads
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United States of America Patent
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Oct 14, 2014
Grant Date -
Mar 6, 2014
app pub date -
Aug 30, 2012
filing date -
Aug 30, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A method for aligning multi-channel digital image data for a digital printer having an array of printheads for each of a plurality of channels is described. A test pattern including test pattern indicia printed using individual printheads is scanned and analyzed to detect locations of the printed test pattern indicia. For each array position, one of the printheads is designated to be a reference printhead, and one or more of the other printheads are designated to be non-reference printheads. Spatial adjustment parameters are determined for each of the non-reference printheads responsive to the detected test pattern indicia locations. Digital image data to be printed with the non-reference printheads is modified in accordance with the determined spatial adjustment parameters.
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