US 12,103,312 B2
Ink replenishment container
Tadahiro Mizutani, Shiojiri (JP); Yoshihiro Koizumi, Shiojiri (JP); Taku Ishizawa, Matsumoto (JP); and Tadashi Watanabe, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Sep. 16, 2022, as Appl. No. 17/946,397.
Claims priority of application No. 2021-151637 (JP), filed on Sep. 17, 2021.
Prior Publication US 2023/0088212 A1, Mar. 23, 2023
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17509 (2013.01) [B41J 2/17596 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An ink replenishment container for replenishing ink into an ink tank of a printer via an ink inlet flow path member having a plurality of flow paths partitioned by a partition, the ink replenishment container comprising:
a container main body configured to accommodate the ink;
an ink outlet forming portion coupled to the container main body and including a tubular portion having an ink outlet; and
an outlet valve unit mounted in the tubular portion,
wherein the outlet valve unit includes
a valve housing mounted in the tubular portion, the valve housing configured to provide a gap with an inner peripheral surface of the tubular portion in the tubular portion,
a sealing member mounted in the valve housing and having an opening through which the ink inlet flow path member is inserted and removed, and
a valve body mounted in the valve housing to be movable in a central axis direction of the ink outlet, and movable between a valve close state in which the valve body is in contact with the sealing member and a valve open state in which the valve body is pressed by the ink inlet flow path member and separated from the sealing member,
the valve body includes a partition contact portion having an end surface configured to contact with the partition of the ink inlet flow path member, and
the valve housing includes a through-hole which communicates with the gap, and the through-hole communicates with the ink inlet flow path member in the valve open state.