US 12,330,424 B2
Cartridge and printing system
Takumi Nagashima, Matsumoto (JP); Yoshihiro Koizumi, Shiojiri (JP); and Shun Oya, Kiso-gun (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Appl. No. 18/033,426
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
PCT Filed Oct. 11, 2021, PCT No. PCT/JP2021/037560
§ 371(c)(1), (2) Date Apr. 24, 2023,
PCT Pub. No. WO2022/091759, PCT Pub. Date May 5, 2022.
Claims priority of application No. 2020-180082 (JP), filed on Oct. 28, 2020.
Prior Publication US 2023/0398783 A1, Dec. 14, 2023
Int. Cl. B41J 2/175 (2006.01); B41J 2/04 (2006.01)
CPC B41J 2/17513 (2013.01) [B41J 2/04 (2013.01); B41J 2/17523 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A cartridge configured to be detachably mounted into a cartridge mounting portion of a printing apparatus having a liquid inlet portion configured to receive a liquid, the cartridge comprising:
a liquid containing portion containing the liquid and having (i) a containing portion front wall located on an insertion direction side, an insertion direction being a direction in which the cartridge is inserted into the cartridge mounting portion, (ii) a containing portion rear wall facing the containing portion front wall, and (iii) a containing portion bottom wall intersecting the containing portion front wall and the containing portion rear wall;
a liquid flowing-in port formed in the containing portion bottom wall; and
a liquid supply portion via which the liquid of the liquid containing portion is supplied to the liquid inlet portion, wherein
the liquid supply portion is coupled to the liquid inlet portion due to rotational movement of a rear-wall side, which is closer to the containing portion rear wall, of the cartridge downward around a rotation fulcrum, which is located on the insertion direction side, of the cartridge mounting portion,
in the insertion direction, a first distance between a central axis of the liquid flowing-in port and a rear wall inner surface, which is an inner surface of the containing portion rear wall, is shorter than a second distance between the central axis of the liquid flowing-in port and a front wall inner surface, which is an inner surface of the containing portion front wall, and
the containing portion rear wall forms a surface on a removal direction side opposite to the insertion direction.