PROBLEM TO BE SOLVED: To perform stronger fluid ejection using piezoelectric elements.SOLUTION: The fluid ejection device includes: a plurality of piezoelectric elements that are arranged in an intersecting direction intersecting with an extending direction a nozzle having an ejection port in the intersecting direction a pressure chamber in communication with the nozzle by defining the intersecting direction as a longitudinal direction and facing ends of the plurality of piezoelectric elements and a controller that sequentially extends the plurality of piezoelectric elements by applying voltage to the plurality of piezoelectric elements from the plurality of piezoelectric elements more distant from the nozzles toward the piezoelectric elements closer to the nozzles.COPYRIGHT: (C)2012,JPO&INPIT【課題】圧電素子を用いてより強い流体噴射を行うこと。【解決手段】伸長方向と交差する交差方向に並ぶ複数の圧電素子と、前記交差方向に噴射口を有するノズルと前記交差方向を長手方向とし前記ノズルと連通する圧力室であって、前記複数の圧電素子の端部と対向する圧力室と、前記ノズルから離れた圧電素子から前記ノズルに近い圧電素子へ向かって前記複数の圧電素子に電圧を印加して順次伸長させる制御部と、を備える流体噴射装置。【選択図】図2
