Ink jet recording apparatus and method capable of increasing density
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United States of America Patent
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Apr 1, 2003
Grant Date -
Sep 5, 2002
app pub date -
Apr 1, 1997
filing date -
May 27, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A paper feed operation is performed by a width less than one pixel (1/2) in addition to an integer multiple number of pixels (n/2) with respect to a basic number of pixels inherent to an ink jet recording apparatus having a multi nozzle head having n nozzles. When a plurality of pixel recording operations are performed for a single pixel region, ink dots land within a distance less than one pixel unit (1/2). Thus, a variation in ink surface density on a recording sheet in an overlapping print operation is reduced, thereby efficiently increasing the image density, and preventing blurring by promoting absorption and evaporation of an ink to and from a paper sheet.
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