Inkjet nozzle arrangement incorporating a thermal bend actuator with an ink ejection paddle
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United States of America Patent
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Jul 22, 2008
Grant Date -
Nov 8, 2007
app pub date -
Jul 17, 2007
filing date -
Jul 15, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a nozzle arrangement for an inkjet printhead. The nozzle arrangement includes a substrate assembly defining an ink inlet channel. A nozzle chamber structure extends from the substrate assembly. The nozzle chamber structure defines a nozzle chamber in fluid communication with an ink inlet channel and an ink ejection port through which ink from the nozzle chamber can be ejected. An ink ejection paddle extends across the nozzle chamber between the ink inlet channel and the ink ejection port. A thermal bend actuator is anchored to the substrate assembly at a location external the nozzle chamber and is coupled to the paddle so that, upon actuation, the paddle moves to eject ink in the nozzle chamber out through the ink ejection port.
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