Ink jet recording apparatus capable of preventing blotting at boundary of colors and recording method therefor
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United States of America Patent
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May 12, 1998
Grant Date -
N/A
app pub date -
Oct 27, 1994
filing date -
Oct 28, 1993
priority date (Note) -
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Abstract
In image recording by discharging plural inks of different characteristics onto a recording medium, recording pixels to be recorded by at least one of the inks of either yellow, magenta or cyan color subjected to pixel expansion are expanded in four direction, then a logic product is calculated between the expanded pixels and the pixels to be recorded with an ink which is black not subjected to pixel expansion, and the recording pixels to be recorded by the ink which is black not subjected to pixel expansion are replaced by the pixels formed by the inks (Y, M, C) subjected to pixel expansion. Thus high-quality image recording is made possible even in case the inks of different properties are brought into mutual contact.
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