Liquid ejecting apparatus

A liquid ejecting apparatus comprising:

• a head unit that includes a piezoelectric element that is driven with supply of a drive signal and ejects a liquid by driving the piezoelectric element;
• and
• a drive signal output unit that outputs the drive signal, wherein
• the head unit includes:
• an ejection portion that includes the piezoelectric element and ejects the liquid;
• a first rigid substrate that propagates the drive signal to the ejection portion, and the first rigid substrate includes:
• a first surface;
• and
• a second surface outwardly opposite to the first surface;
• and
• a first connector to which the drive signal is input,
• the drive signal output unit includes:
• a second rigid substrate, and the second rigid substrate includes:
• a third surface;
• and
• a fourth surface outwardly opposite to the third surface;
• and
• a second connector from which the drive signal is output,
• the first connector includes:
• a first fixing portion fixed to the first rigid substrate;
• and
• a first terminal through which the drive signal propagates,
• the second connector includes:
• a second fixing portion fixed to the second rigid substrate;
• and
• a second terminal through which the drive signal propagates,
• the first connector has a receptacle shape,
• the second connector has a plug shape,
• the second surface of the first rigid substrate and the third surface of the second rigid substrate face each other,
• no circuit components other than the second connector are provided on the third surface of the second rigid substrate, and
• the first rigid substrate and the second rigid substrate are electrically coupled by fitting the first connector and the second connector so that the first terminal and the second terminal are in direct contact with each other.