Head chip, liquid jet head and liquid jet recording device
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United States of America Patent
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May 19, 2020
Grant Date -
May 16, 2019
app pub date -
Nov 9, 2018
filing date -
Nov 13, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of improving the ejection stability. The head chip according to an embodiment of the disclosure includes an actuator plate having a plurality of ejection grooves each filled with liquid, a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and a cover plate having a through hole through which the liquid flows into and/or from the ejection groove, and a wall part adapted to cover the ejection groove. A flow channel of the liquid in a part adapted to communicate the through hole and the ejection groove with each other includes a principal flow channel section, and an expanded flow channel section provided to the wall part, and adapted to increase a cross-sectional area of the flow channel.
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