Ink jet recording apparatus
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United States of America Patent
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Jun 28, 2016
Grant Date -
Feb 18, 2016
app pub date -
Aug 11, 2015
filing date -
Aug 12, 2014
priority date (Note) -
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Abstract
An ink jet recording apparatus according to the invention includes an ink, and a discharge head that discharges the ink, in which the discharge head includes a plurality of pressure chambers respectively communicating with a plurality of nozzle holes formed in a nozzle plate, a vibration plate changing the capacity of each of the plurality of pressure chambers, and an ink supply chamber for supplying the ink to the plurality of pressure chambers, the capacity of the pressure chamber is 10.0×106 μm3 or less, the density in which the plurality of nozzle holes are arranged in the nozzle plate is 200 dpi or more, the ink includes a dye, water, and an organic solvent, a ratio (organic solvent/water) of a mass of the organic solvent to a mass of the water in the ink is 0.3 to 0.7.
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