LIQUID DISCHARGE HEAD, DISCHARGE UNIT, AND DEVICE FOR DISCHARGING LIQUID

To suppress the fluctuation of discharge characteristics.SOLUTION: A liquid discharge head is equipped with a plurality of nozzles 11 discharging liquid, a plurality of pressure chambers 21 respectively communicating with the plurality of nozzles 11, a common supply channel 51 communicating to the plurality of pressure chambers 21, and a common recovery channel 52 communicating to the plurality of pressure chambers 21. The common supply channel 51 has a first area 61 capable of displacing on a part of a wall surface, and the common recovery channel 52 has a second area 62 capable of displacing on a part of the wall surface. Surfaces opposite to the channel sides of the first area 61 and the second area 62 face a common air chamber 63.SELECTED DRAWING: Figure 1 【課題】吐出特性の変動を抑制する。【解決手段】液体を吐出する複数のノズル１１と、複数のノズル１１にそれぞれ通じる複数の圧力室２１と、複数の圧力室２１に通じる共通供給流路５１と、複数の圧力室２１に通じる共通回収流路５２と、を備え、共通供給流路５１は、壁面の一部に変位可能な第１領域６１を有し、共通回収流路５２は、壁面の一部に変位可能な第２領域６２を有し、第１領域６１及び第２領域６２の流路側とは反対の面は共通の空気室６３に臨んでいる。【選択図】図１