Piezoelectric ink jet module with seal
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United States of America Patent
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Jan 20, 2009
Grant Date -
Aug 24, 2006
app pub date -
Jan 20, 2006
filing date -
Oct 5, 1999
priority date (Note) -
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Abstract
A piezoelectric ink jet head that includes a polymer film, for example a flex print, located between the piezoelectric element and the reservoirs in the jet body. The film provides an efficient seal for the reservoirs and also positions the electrodes on the side of the piezoelectric element in which motion is effected, which can reduce the magnitude of the drive voltage. This location of the compliant flex print material also can enhance electrical and mechanical isolation between reservoirs, which improves jetting accuracy. The compliance of the polymer also reduces strain on the ink jet head.
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