Ink-jet printing apparatus for performing printing with ink and printing ability improving liquid
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United States of America Patent
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-
Aug 8, 2000
Grant Date -
N/A
app pub date -
Nov 20, 1997
filing date -
Nov 22, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
When printing is performed by ejecting respective inks of black and cyan and a processing liquid, an OR data and an AND data are derived from an extracted data for the processing liquid derived from an ejection data of the black ink and an extracted data for the processing liquid derived from an ejection data for the cyan ink. An OR data of the OR data derived from the extracted data and data derived by shifting the AND data for one pixel, is taken as an ejection data for the processing liquid. By this, for the pixel, on which black and cyan are ejected in overlapping manner as represented by the AND data, the processing liquid is further ejected on a pixel adjacent thereto. Thus, the processing liquid in an amount corresponding to an ink ejection amount can be ejected to provide sufficient water-resistance.
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