LIQUID DISCHARGE HEAD, LIQUID DISCHARGE UNIT AND LIQUID DISCHARGE DEVICE

To provide a liquid discharge head that can reduce crosstalk, a liquid discharge unit and a liquid discharge device.SOLUTION: A liquid discharge head supplies liquid from a common liquid chamber 3 to pressurization liquid chambers 4 communicated with a plurality of nozzles 2 respectively, and makes...

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1. Verfasser: MACHIDA OSAMU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a liquid discharge head that can reduce crosstalk, a liquid discharge unit and a liquid discharge device.SOLUTION: A liquid discharge head supplies liquid from a common liquid chamber 3 to pressurization liquid chambers 4 communicated with a plurality of nozzles 2 respectively, and makes the nozzles 2 discharge liquid in the pressurization liquid chambers by driving piezoelectric elements which are electromechanical conversion elements arranged at the nozzle side with respect to the pressurization liquid chambers 4. Further, openings through which liquid is supplied from the common liquid chamber 3 are formed at the opposite side of the nozzle side of the pressurization liquid chambers 4, where the cross sectional areas at the side of the openings of the pressurization liquid chambers 4 gradually increase as going toward the common liquid chamber.SELECTED DRAWING: Figure 4 【課題】クロストークを低減することができる液体吐出ヘッド、液体吐出ユニット及び液体を吐出する装置を提供する。【解決手段】液体吐出ヘッドは、複数のノズル2にそれぞれ連通する加圧液室4に共通液室3から液体を供給し、加圧液室4に対してノズル側に配置された電気機械変換素子たる圧電素子を駆動して、加圧液室内の液体をノズル2から吐出する。そして、各加圧液室4のノズル側とは反対側に共通液室3から液体が供給される開口を有し、各加圧液室4の開口側の断面積が、共通液室に向かうにしたがって増加している。【選択図】図4