US 12,257,846 B2
Liquid storage container
Keisuke Kouno, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Oct. 7, 2022, as Appl. No. 17/962,385.
Claims priority of application No. 2021-169410 (JP), filed on Oct. 15, 2021.
Prior Publication US 2023/0122986 A1, Apr. 20, 2023
Int. Cl. B41J 2/175 (2006.01); B41J 29/377 (2006.01)
CPC B41J 2/17533 (2013.01) [B41J 2/17513 (2013.01); B41J 2/17553 (2013.01); B41J 2/17596 (2013.01); B41J 29/377 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A liquid storage container comprising:
a liquid reservoir part configured to reserve a liquid;
an air communication passage for communicating the liquid reservoir part with an atmosphere;
a partition wall configured to separate an inside of the liquid reservoir part and an outside of the liquid reservoir part;
a through hole configured to penetrate the partition wall in a first direction;
a movable support member capable of moving in the through hole in the first direction;
a first seal member disposed in the liquid reservoir part and fixed to the movable support member;
a second seal member disposed outside the liquid reservoir part and fixed to the movable support member; and
a biasing member configured to bias the movable support member so that the first seal member positions at a closing position where the first seal member closes the air communication passage,
wherein the movable support member has receiving part configured to receive an external force, and the external force moves the first seal member from the closing position so that the inside of the liquid reservoir part communicates with the outside of the liquid reservoir part via the air communication passage, and
wherein when the movable support member is moved in a direction opposite to a biasing direction along which the biasing member biases the movable support member, the second seal member closes a gap between the movable support member and the through hole.