US 11,872,812 B2
Liquid ejection head and liquid ejection device
Tomomi Iijima, Mishima Shizuoka (JP)
Assigned to Toshiba Tec Kabushiki Kaisha, Tokyo (JP)
Filed by TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 30, 2021, as Appl. No. 17/537,898.
Claims priority of application No. 2021-009850 (JP), filed on Jan. 25, 2021.
Prior Publication US 2022/0234355 A1, Jul. 28, 2022
Int. Cl. B41J 2/14 (2006.01); B41J 2/03 (2006.01)
CPC B41J 2/14201 (2013.01) [B41J 2/03 (2013.01); B41J 2002/14306 (2013.01); B41J 2002/14338 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A liquid ejection head, comprising:
a base plate with an actuator on an upper surface side of the base plate;
a plurality of pressure chambers formed in the actuator;
a first common chamber connected to a first side of the plurality of pressure chambers;
a second common chamber connected to a second side of the plurality of pressure chambers, the pressure chambers connecting the first common chamber to the second common chamber;
a nozzle plate on an upper surface side of the actuator and having a plurality of nozzles at positions respectively corresponding to the pressure chambers;
a supply hole in the base plate connected to the first common chamber;
a discharge hole in the base plate connected to the second common chamber; and
a manifold on a lower surface side of the base plate, the manifold having:
a liquid supply flow path for supplying liquid to the supply hole from a liquid feed port on a lower surface side of the manifold,
a liquid discharge flow path for receiving liquid from the discharge hole, and
a temperature control flow path through which a temperature control liquid can flow, wherein
the first common chamber is between a pair of actuators on the upper surface side of the base plate.