LIQUID DISCHARGE DEVICE

To provide a liquid discharge device capable of downsizing, and improving accuracy of liquid discharge.SOLUTION: In a liquid discharge device, a substrate unit which is connected to a print head including a first connector and a piezoelectric element comprises: a second connector fitted to the first connector; a reference voltage signal outputting circuit for outputting a reference voltage signal to be supplied to the piezoelectric element; an electrolytic capacitor; and a wiring board containing a plurality of rigid members, and a flexible member including a first plane, a second plane, a first region, and a second region. Further in the liquid discharge device, the reference voltage signal outputting circuit is provided on a first rigid member which has a first surface and is laminated on a first plane of a first region, whereas the electrolytic capacitor is provided on a second rigid member which has a second surface and is laminated on a first plane of a second region. The second connector is provided on a third rigid member which is laminated on a second plane of a second region, and the first rigid member and the second rigid member are positioned so that a normal direction of the first surface and a normal direction of the second surface intersect with each other.SELECTED DRAWING: Figure 24 【課題】小型化、液体の吐出精度の向上が可能な液体吐出装置を提供すること。【解決手段】第１コネクターと圧電素子とを有するプリントヘッドと接続された基板ユニットが、第１コネクターと嵌合する第２コネクター、圧電素子に供給される基準電圧信号を出力する基準電圧信号出力回路、電解コンデンサー、及び複数のリジッド部材と、第１面、第２面、第１領域、及び第２領域を含むフレキシブル部材と、を含む配線基板を有し、基準電圧信号出力回路は、第１表面を含み第１領域の第１面に積層された第１リジッド部材に設けられ、電解コンデンサーは、第２表面を含み、第２領域の第１面に積層された第２リジッド部材に設けられ、第２コネクターは、第２領域の第２面に積層された第３リジッド部材に設けられ、第１リジッド部材と第２リジッド部材とは、第１表面の法線方向と第２表面の法線方向とが交差するように位置している、液体吐出装置。【選択図】図２４