US 12,115,787 B2
Liquid ejection head and method of manufacturing liquid ejection head
Shogo Kawamura, Kanagawa (JP); and Takuya Iwano, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jun. 24, 2022, as Appl. No. 17/848,475.
Claims priority of application No. 2021-109358 (JP), filed on Jun. 30, 2021.
Prior Publication US 2023/0001703 A1, Jan. 5, 2023
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/1408 (2013.01) [B41J 2/14024 (2013.01); B41J 2002/14306 (2013.01); B41J 2202/08 (2013.01); B41J 2202/19 (2013.01); B41J 2202/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A liquid ejection head comprising:
an element substrate comprising a plurality of ejection ports configured to eject a liquid and an element configured to generate energy for ejecting the liquid from the ejection ports;
a first flow path member comprising a surface on which the plurality of element substrates are arranged and mounted and a portion of a flow path through which the ejection ports are supplied with the liquid;
a second flow path member configured to form a liquid supply member comprising the flow path by being laminated with the first flow path member, the liquid supply member being warped convexly in a first direction during ejection of the liquid; and
a support member configured to support the liquid supply member,
wherein the liquid supply member warped concavely in the first direction in a state in which no liquid is ejected has two end portions with respect to an arranging direction in which the element substrates are arranged, both the end portions being fixed to the support member by a fixing member and a biasing member which is combined with the fixing member and can bias the liquid supply member to be fixed by the fixing member.