Liquid discharge apparatus

A liquid discharge apparatus comprising:

• a print head that discharges a liquid;
• a substrate unit electrically coupled to the print head;
• and
• a control circuit that controls operations of the print head and the substrate unit, wherein
• the print head includes
• a first discharge section that has a first piezoelectric element that is displaced by receiving a first driving signal and discharges a liquid by displacement of the first piezoelectric element, and
• a first connector electrically coupled to the substrate unit, the substrate unit includes
• a second connector that is electrically coupled to the print head by being fitted to the first connector,
• a first drive circuit that outputs the first driving signal,
• a temperature sensor that acquires environmental temperature, and
• a wiring substrate provided with the first drive circuit and the temperature sensor, and
• the control circuit controls the first drive circuit and the print head based on the environmental temperature acquired by the temperature sensor,
• the wiring substrate is a rigid flexible substrate including a plurality of rigid members provided with the first drive circuit and the temperature sensor, and a flexible member more flexible than the plurality of rigid members
• the flexible member includes a first surface, a second surface opposite to the first surface, a first region, a second region, and a third region,
• the third region is positioned between the first region and the second region,
• the plurality of rigid members include a first rigid member and a second rigid member,
• the first rigid member includes a first front surface, and is laminated on the first surface of the first region such that the first front surface extends along the first surface,
• the second rigid member includes a second front surface, and is laminated on the first surface of the second region such that the second front surface extends along the first surface,
• the first drive circuit is provided on the first rigid member, and
• the temperature sensor is provided on the second rigid member.