Ink-jet recording head with a particular arrangement of thermoelectric transducers and discharge openings
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United States of America Patent
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May 16, 2000
Grant Date -
N/A
app pub date -
Jun 25, 1997
filing date -
Jun 26, 1996
priority date (Note) -
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Abstract
An ink-jet recording head comprises a plurality of liquid flow paths having discharge openings for discharging an ink, and a plurality of thermoelectric transducers provided for each liquid flow path in order to discharge the ink, wherein, a frontward thermoelectric transducer located on the discharge opening side is so provided that, when the ink is discharged by the frontward thermoelectric transducer alone, a value of (discharge velocity v/discharge quantity Vd) with respect to a distance OH extending from an end of its discharge opening side to the discharge opening is at a distance OH of the first region in a regional classification into a first region in which the value of v/Vd increases with a decrease in the distance OH and a second region in which it comes to be substantially constant with an increase in the distance OH.
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