Fluid ejection device and medical apparatus
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United States of America Patent
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Aug 22, 2017
Issued Date -
N/A
app pub date -
Mar 27, 2014
filing date -
Mar 28, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A fluid ejection device which ejects a fluid includes: an ejection tube which ejects the fluid; a fluid chamber which communicates with the ejection tube; a piezoelectric element capable of changing a volume of the fluid chamber; a controller which controls a drive voltage applied to the piezoelectric element; and a fluid supplying unit which supplies the fluid to the fluid chamber at a predetermined flow rate. If a maximum frequency available to be set of the drive voltage is fmax [Hz] and an amount of change in the volume of the fluid chamber when a maximum value available to be set of the drive voltage is applied to the piezoelectric element to drive the piezoelectric element is V1 [ml], the fluid supplying unit supplies the fluid at the predetermined flow rate above V1×fmax [ml/s].
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