Simplified ink jet head
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United States of America Patent
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Sep 17, 2002
Grant Date -
May 2, 2002
app pub date -
Nov 20, 2001
filing date -
Mar 21, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the embodiments of the simplified ink jet head described in the specification, a carbon body is formed with ink passages, such as internal passages extending through a carbon plate, pressure chambers on one side of a carbon plate, flowthrough passages on the other side of the same plate and ink supply passages, and a piezoelectric plate is affixed to the pressure chamber side of the carbon plate by a thin layer of epoxy adhesive. In one alternative embodiment, an ink jet head assembly contains two separate carbon pressure chamber plates, a carbon manifold plate and a carbon collar to retain the carbon plates in an assembly.
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