Ink-jet printing method and apparatus therefor
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United States of America Patent
Stats
-
Oct 23, 2001
Grant Date -
N/A
app pub date -
Jun 24, 1997
filing date -
Jun 28, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Each nozzle of an ink-jet head has heaters having different heating capacities, and in accordance with the heater driven, a diameter of an ink dot formed by ink which is discharged from the nozzle is changed, thereby printing a large dot or a small dot. When multi-value image data is inputted, the multi-value image data is modulated such that a pixel having high density is printed with both the large dot and small dot. On the basis of the modulated print data, any of the heaters included in each nozzle of the ink-jet head is driven, whereby printing an image having tones based on the multi-value image data.
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Cited Art Landscape
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