US 12,459,267 B2
Liquid supply device
Seiichiro Karita, Saitama (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 4, 2023, as Appl. No. 18/365,593.
Claims priority of application No. 2022-128228 (JP), filed on Aug. 10, 2022.
Prior Publication US 2024/0051303 A1, Feb. 15, 2024
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17513 (2013.01) [B41J 2/17596 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A liquid supply device attachable to and detachable from an image forming apparatus, the liquid supply device comprising:
a storage portion configured to store liquid;
a supply portion configured to supply the liquid stored in the storage portion to the image forming apparatus;
a first atmosphere communication port opening to an outside of the liquid supply device;
a flow passage member including a first flow passage formed therein; and
a second atmosphere communication port opening to the outside of the liquid supply device, wherein the liquid supply device is switchable, by movement of the flow passage member, between an open state in which the first flow passage of the flow passage member connects the storage portion to the first atmosphere communication port, and a sealed state in which the first flow passage does not connect the storage portion to the first atmosphere communication port, and
wherein a second flow passage for connecting the second atmosphere communication port to the storage portion is formed inside the flow passage member.