US 11,840,093 B2
Liquid storage container and liquid discharge apparatus
Ryo Shimamura, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 5, 2022, as Appl. No. 17/569,439.
Claims priority of application No. 2021-026329 (JP), filed on Feb. 22, 2021.
Prior Publication US 2022/0266596 A1, Aug. 25, 2022
Int. Cl. B41J 2/175 (2006.01); B41J 29/13 (2006.01)
CPC B41J 2/1754 (2013.01) [B41J 29/13 (2013.01); B41J 2/17509 (2013.01)] 17 Claims
OG exemplary drawing
 
1. The liquid storage container comprising:
a storage chamber configured to storage liquid;
a supply port configured to have a hollow cylindrical portion protruding from the storage chamber and be capable of supplying the liquid to the storage chamber; and
a plug member detachably attached to the supply port,
wherein the plug member has a plug portion inserted into the hollow cylindrical portion to plug the supply port, and the plug portion has a first water repellent film having water repellency formed on an exposed surface exposed at least inside the storage chamber in a portion inserted into the hollow cylindrical portion, and
wherein a second water repellent film having water repellency is formed at least in a region adjacent to the supply port on the inner wall surface of the storage chamber.