US 12,220,919 B2
Liquid ejecting head and liquid ejecting apparatus
Takanori Aimono, Matsumoto (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Feb. 1, 2023, as Appl. No. 18/163,040.
Claims priority of application No. 2022-016087 (JP), filed on Feb. 4, 2022; application No. 2022-016088 (JP), filed on Feb. 4, 2022; and application No. 2022-032533 (JP), filed on Mar. 3, 2022.
Prior Publication US 2023/0249463 A1, Aug. 10, 2023
Int. Cl. B41J 2/045 (2006.01); B41J 2/14 (2006.01)
CPC B41J 2/1433 (2013.01) 20 Claims
OG exemplary drawing
 
1. A liquid ejecting head comprising:
a nozzle plate on which a first nozzle configured to eject a liquid is formed;
first and second pressure chambers arranged side by side in a first direction;
third and fourth pressure chambers arranged side by side in the first direction;
a first communication flow path extending along the nozzle plate, coupled to the first nozzle, and communicating with the first to fourth pressure chambers;
a first common liquid chamber communicating with the first and second pressure chambers; and
a second common liquid chamber communicating with the third and fourth pressure chambers, wherein
the first and second pressure chambers and the third and fourth pressure chambers are shifted in a second direction orthogonal to the first direction, and
when a width of the first communication flow path in the first direction at a position overlapping the first nozzle in plan view seen toward the nozzle plate is defined as a first width, and a width of the first pressure chamber in the first direction is defined as a pressure chamber width, the first width is equal to or greater than the pressure chamber width.