US 11,807,015 B2
Cartridge
Takumi Nagashima, Matsumoto (JP); Yoshihiro Koizumi, Shiojiri (JP); Shun Oya, Kiso-machi (JP); and Hiroto Hanba, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Mar. 18, 2022, as Appl. No. 17/698,307.
Claims priority of application No. 2021-045568 (JP), filed on Mar. 19, 2021; and application No. 2021-113362 (JP), filed on Jul. 8, 2021.
Prior Publication US 2022/0297437 A1, Sep. 22, 2022
Int. Cl. B41J 2/175 (2006.01); B41J 29/02 (2006.01); B41J 29/13 (2006.01)
CPC B41J 2/17553 (2013.01) [B41J 2/1752 (2013.01); B41J 29/02 (2013.01); B41J 29/13 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A cartridge configured to be attached to and detached from a cartridge attachment section of a printing apparatus, the cartridge comprising:
a casing that demarcates a liquid chamber used for storing a liquid and that forms a hollow space; and
a liquid supply section that communicates with the liquid chamber and supplies the liquid in the liquid chamber to the printing apparatus, wherein
the casing includes a concave/convex portion, and
a part of the concave/convex portion protrudes from an inner surface of the liquid chamber inside the hollow space.