Serial printer for reducing printer head movement
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United States of America Patent
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Apr 30, 2013
Grant Date -
Sep 23, 2010
app pub date -
Mar 22, 2010
filing date -
Mar 23, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a serial printer including: a reading unit configured to read a raster image from a manuscript medium; an analysis unit configured to derive a horizontal distribution of pixels darker than a background color of the manuscript medium in each band including a predetermined number of lines with respect to the raster image; a threshold derivation unit configured to derive a fixed threshold according to a length L of a section in which a cumulative frequency of the horizontal distribution of an edge of the band does not exceed a predetermined temporary threshold; and a movement distance control unit configured to reduce the movement distance of a printing head according to a section in which the cumulative frequency of the horizontal distribution from the edge of the band exceeds the fixed threshold.
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