US 12,441,115 B2
Liquid ejecting head and liquid ejecting apparatus
Eiichiro Watanabe, Matsumoto (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Sep. 27, 2023, as Appl. No. 18/475,973.
Claims priority of application No. 2022-154647 (JP), filed on Sep. 28, 2022.
Prior Publication US 2024/0100843 A1, Mar. 28, 2024
Int. Cl. B41J 2/175 (2006.01); B41J 2/14 (2006.01); B41J 2/145 (2006.01)
CPC B41J 2/17513 (2013.01) [B41J 2/14274 (2013.01); B41J 2/1433 (2013.01); B41J 2/145 (2013.01); B41J 2002/17516 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A liquid ejecting head comprising:
a first nozzle row configured by arranging first nozzles, in a first direction, configured to eject a liquid;
first individual flow paths that communicate with each of the first nozzles;
a first supply side common liquid chamber coupled to the first individual flow paths and for supplying the liquid to the first nozzles via the first individual flow paths;
a first recovery side common liquid chamber coupled to the first individual flow paths and for recovering the liquid not discharged from the first nozzles via the first individual flow paths;
a first inlet for supplying the liquid to the first supply side common liquid chamber;
a first outlet for discharging the liquid from the first recovery side common liquid chamber;
a first bypass flow path that couples an end portion of the first supply side common liquid chamber in the first direction and an end portion of the first recovery side common liquid chamber in the first direction; and
a second bypass flow path that couples an end portion of the first supply side common liquid chamber in a second direction opposite to the first direction and an end portion of the first recovery side common liquid chamber in the second direction, wherein
the first inlet is disposed between the first bypass flow path and the second bypass flow path in the first direction,
the first outlet is disposed between the first bypass flow path and the second bypass flow path in the first direction, and
a flow path resistance of the first bypass flow path and a flow path resistance of the second bypass flow path are different from each other.