Inverted radial back-curling thermoelastic ink jet printing mechanism
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United States of America Patent
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Jun 19, 2001
Grant Date -
N/A
app pub date -
Jul 10, 1998
filing date -
Jun 9, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.
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