US 12,128,682 B2
Liquid ejecting apparatus
Yusuke Matsumoto, Shiojiri (JP); and Toru Matsuyama, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Oct. 28, 2021, as Appl. No. 17/512,828.
Claims priority of application No. 2020-181650 (JP), filed on Oct. 29, 2020.
Prior Publication US 2022/0134742 A1, May 5, 2022
Int. Cl. B41J 2/045 (2006.01); H01R 12/52 (2011.01); B41J 2/14 (2006.01)
CPC B41J 2/04588 (2013.01) [B41J 2/04541 (2013.01); B41J 2/04581 (2013.01); H01R 12/52 (2013.01); B41J 2002/14491 (2013.01)] 8 Claims
OG exemplary drawing
 
1. 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 configured to eject a wide variety of inks,
a first rigid substrate that propagates the drive signal to the ejection portion, and
a first connector to which the drive signal is input,
wherein the drive signal output unit includes:
a second rigid substrate, and
a second connector from which the drive signal is output,
wherein the first connector includes:
a first fixing portion fixed to the first rigid substrate,
a first insulator portion and a second insulator portion, the first insulator portion defining a protrusion and the second insulator portion surrounding the first insulator portion,
a first terminal through which the drive signal propagates, arranged on one surface of the protrusion,
a second terminal arranged on another surface of the protrusion, and
each of the first terminal and the second terminal are sandwiched between the first insulator portion and the second insulator portion, and each of the first terminal and the second terminal include a section that extends in parallel with the first rigid substrate and are sandwiched between the second insulator portion and the first fixing portion,
wherein the second connector includes:
a second fixing portion fixed to the second rigid substrate,
a third insulator portion formed with an insertion hole into which the protrusion of the first insulator portion is inserted,
a third terminal, through which the drive signal propagates, arranged on one surface of the insertion hole, and
a fourth terminal arranged on another surface of the insertion hole,
wherein the first connector and the second connector are fitted so that the first terminal and the third terminal are in direct contact with each other, and the second terminal and the fourth terminal are in direct contact with each other, and
wherein at least one of the first fixing portion and the second fixing portion is tin-plated.