Ink jet print head and method of production thereof
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United States of America Patent
Stats
-
Jan 20, 2004
Grant Date -
Dec 5, 2002
app pub date -
May 31, 2002
filing date -
Jun 1, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet print head includes pressure chambers, a diaphragm forming a side of the pressure chambers, stacked piezoelectric elements, a piezoelectric element fixing plate, and a housing. The stacked piezoelectric elements are attached to the diaphragm in a one-to-one correspondence with pressure chambers. The piezoelectric element fixing plate is fixedly attached to and supports the stacked piezoelectric elements. The housing includes a common ink channel portion that supplies ink to the pressure chambers. The piezoelectric element fixing plate and the stacked piezoelectric elements are disposed at least partially in the space defined by the diaphragm and internal side walls of the ink channel portion with a gap existing between the piezoelectric element fixing plate and the internal side walls.
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