US 12,076,988 B2
Liquid ejecting head and liquid ejecting apparatus
Akira Miyagishi, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Oct. 31, 2022, as Appl. No. 17/976,953.
Claims priority of application No. 2021-179518 (JP), filed on Nov. 2, 2021.
Prior Publication US 2023/0136625 A1, May 4, 2023
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/14201 (2013.01) 16 Claims
OG exemplary drawing
 
1. A liquid ejecting head comprising:
a line of first pressure chambers including a plurality of first pressure chambers arranged in a first direction;
a line of second pressure chambers including a plurality of second pressure chambers arranged in the first direction, the line of second pressure chambers being provided at a different position from the first pressure chambers in a second direction intersecting with the first direction;
a line of nozzles including a plurality of nozzles arranged in the first direction and communicating with the first pressure chambers and the second pressure chambers in common, respectively;
first piezoelectric bodies provided corresponding to the plurality of first pressure chambers;
first individual electrodes individually provided to the plurality of first pressure chambers and being electrically coupled to the first piezoelectric bodies;
a first common electrode provided in common to the plurality of first pressure chambers and electrically coupled to the first piezoelectric bodies;
second piezoelectric bodies provided corresponding to the plurality of second pressure chambers;
second individual electrodes individually provided to the plurality of second pressure chambers and being electrically coupled to the second piezoelectric bodies;
a second common electrode provided in common to the plurality of second pressure chambers and electrically coupled to the second piezoelectric bodies;
a wiring member that supplies a voltage to the first individual electrodes, the first common electrode, the second individual electrodes, and the second common electrode;
a first individual line that electrically couples the first individual electrode to the wiring member;
a first common line that electrically couples the first common electrode to the wiring member;
a second individual line that electrically couples the second individual electrode to the wiring member; and
a second common line that electrically couples the second common electrode to the wiring member, wherein
the wiring member is electrically coupled to the first common line at a position shifted to one side in the first direction relative to a center in the first direction of the lines of first and second pressure chambers, and
the wiring member is electrically coupled to the second common line at a position shifted to another side in the first direction relative to the center in the first direction of the lines of first and second pressure chambers.