Inkjet printhead device, fluid ejection device, and method thereof
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United States of America Patent
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Jan 9, 2018
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app pub date -
Mar 28, 2016
filing date -
Oct 24, 2011
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Abstract
An inkjet printhead device, fluid ejection device and method thereof are disclosed. The fluid ejection device includes a fluid supply chamber to store fluid, an ejection chamber including a nozzle and a corresponding ejection member to selectively eject the fluid through the nozzle, and a channel to establish fluid communication between the fluid supply chamber and the ejection chamber. The fluid ejection device also includes a pressure sensor unit having a sensor plate to output a voltage value corresponding to a cross-sectional area of an amount of fluid in the at least ejection chamber.
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