Hardcopy apparatus and method
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United States of America Patent
Stats
-
Oct 10, 2006
Grant Date -
Dec 16, 2004
app pub date -
Apr 27, 2004
filing date -
Apr 30, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a method of printing with overlapping printhead dies, artifacts in the printed image caused by the printing nozzles in the overlapping region are removed, either by measuring the width of the band produced in the overlapping region and selecting an appropriate depletion or propletion printing mask for subsequent printing operations, or by printing out a test pattern in which areas corresponding to a range of depletion and propletion masks are printed out and the optimal mask is selected for subsequent printing operations. The dies overlap by only a few rows of nozzles. The method may be employed in fixed printhead apparatus (e.g. page wide arrays) or in a scanning printhead apparatus.
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