US 12,447,749 B2
Ink refill container
Tadahiro Mizutani, Shiojiri (JP); and Yoshihiro Koizumi, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Mar. 28, 2023, as Appl. No. 18/127,064.
Claims priority of application No. 2022-053043 (JP), filed on Mar. 29, 2022.
Prior Publication US 2023/0311523 A1, Oct. 5, 2023
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17506 (2013.01) [B41J 2/17596 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An ink refill container for refilling an ink tank of a printer with ink through an ink introduction conduit communicating with the ink tank, the ink refill container comprising:
a container body portion having an ink storing chamber configured to store ink;
an ink-outlet forming portion coupled to the container body portion and including a cylindrical portion having an ink outlet;
a sealing member disposed in the cylindrical portion and having an opening that enables insertion and removal of the ink introduction conduit;
a valve member provided to be configured to come into contact with the sealing member;
a spring member configured to urge the valve member toward the sealing member; and
a valve holder configured to hold at least the valve member and the spring member, wherein
the valve holder includes an engagement portion configured to detachably engage the ink-outlet forming portion.