US 11,724,509 B2
Liquid supply member and liquid discharge head
Ryo Sato, Tokyo (JP); Hiroki Tajima, Kanagawa (JP); Kyosuke Toda, Kanagawa (JP); and Shimpei Yoshikawa, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 12, 2021, as Appl. No. 17/373,596.
Claims priority of application No. 2020-120864 (JP), filed on Jul. 14, 2020.
Prior Publication US 2022/0016896 A1, Jan. 20, 2022
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17553 (2013.01) 14 Claims
OG exemplary drawing
 
1. A liquid supply member comprising:
a first member configured to form a liquid chamber for storing a liquid to be supplied to a discharge port for discharging the liquid;
a damper member, formed of a flexible material, configured to form the liquid chamber together with the first member;
a second member configured to form an atmosphere communication chamber, communicating with an ambient atmosphere, at a position between the damper member and the second member and opposing the liquid chamber with the damper member in between; and
a protrusion portion contiguous with the second member and extending from a surface of the second member facing the atmosphere communication chamber, the protrusion portion protruding toward the damper member beyond a connection surface between the damper member and the second member.