Ink jet head having ejection outlet with different openings angles and which drives ejection energy generating elements in blocks
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United States of America Patent
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-
Jul 27, 1999
Grant Date -
N/A
app pub date -
Aug 7, 1995
filing date -
Aug 5, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet head for effecting recording by selectively ejecting ink onto a recording material, includes an array of ejection outlets; a plurality of ink flow paths each having an ejection energy generating element for ejecting the ink, the ink flow paths being in fluid communication with ejection outlets; a common liquid chamber for supplying the ink to the a plurality of ink flow paths; wherein the plurality of the ejection energy generating elements are grouped into blocks of a predetermined number of ejection energy generating elements, and actuation timing for the ejection energy generating elements is deviated for each blocks; wherein the ejection outlets have different opening angles for respective blocks in a direction of reducing deviation of recording positions between respective blocks.
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