Liquid ejection apparatus
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United States of America Patent
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Oct 21, 2014
Grant Date -
Mar 6, 2014
app pub date -
Aug 26, 2013
filing date -
Aug 31, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid ejection apparatus includes a liquid ejection head including a plurality of ejection opening groups each constituted by two or more ejection openings and each forming one pixel by at least two liquid droplets ejected from the two or more ejection openings; a plurality of individual channels respectively connecting the plurality of ejection opening groups to a plurality of pressure chambers; a nozzle plate through which a plurality of nozzle holes extend; and an energy-applying portion applying energy to liquid in the plurality of pressure chambers, and a controller controlling the energy-applying portion. The controller controls the energy-applying portion in such a manner as to meet the following inequations: 0.85Ta≦T≦0.9Ta or 1.2Ta≦T in a case of p/D≦1.2, and 0.85Ta≦T in a case of p/D>1.2.
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