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FLUID EJECTION DEVICE AND MEDICAL APPARATUS
专利权人:
SEIKO EPSON CORPORATION
发明人:
Kazuaki UCHIDA,Junichi KARASAWA,Takahiro MATSUZAKI
申请号:
US14226975
公开号:
US20140296892A1
申请日:
2014.03.27
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A fluid ejection device which ejects a fluid includes: an ejection pipe having an opening to eject the fluid; a fluid chamber which communicates with the ejection pipe and changes in volume due to displacement of a piezoelectric element; a supply channel which communicates with the fluid chamber; an opening/closing unit which is provided on the supply channel and opens and closes the supply channel; a fluid supplying unit which pressurizes the fluid and supplies the fluid to the fluid chamber via the supply channel; and a voltage controller which applies a drive voltage to the piezoelectric element. The voltage controller controls the drive voltage applied to the piezoelectric element so that the drive voltage reaches a predetermined voltage after the supply channel is opened by the opening/closing unit.
来源网站:
中国工程科技知识中心
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