Printhead integrated circuit with an ink ejecting surface
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United States of America Patent
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Aug 4, 2009
Grant Date -
Apr 24, 2008
app pub date -
Dec 12, 2007
filing date -
Jun 9, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided is a printhead integrated circuit defining an external surface having a number of ink ejection ports operatively directed at a printing medium. The surface includes a plurality of petal formations radially positioned about each ink ejection port, and a plurality of actuators, each located behind a petal formation distal from said port. The surface also includes a plurality of heater structures each connected to an actuator, so that heating of the structures via an electrical current produces expansion in said actuators which urges the formations into a chamber below the surface.
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