US 11,926,162 B2
Ink refill container and ink refill system
Tadahiro Mizutani, Shiojiri (JP); Taku Ishizawa, Matsumoto (JP); Noriyuki Fukasawa, Shiojiri (JP); Naomi Kimura, Okaya (JP); Shoma Kudo, Shiojiri (JP); and Manabu Akahane, Tatsuno-machi (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Apr. 19, 2023, as Appl. No. 18/136,628.
Application 18/136,628 is a continuation of application No. 17/946,606, filed on Sep. 16, 2022, granted, now 11,667,123.
Application 17/946,606 is a continuation of application No. 17/238,923, filed on Apr. 23, 2021, granted, now 11,541,662, issued on Jan. 3, 2023.
Application 17/238,923 is a continuation of application No. 16/885,044, filed on May 27, 2020, granted, now 11,007,787, issued on May 18, 2021.
Application 16/885,044 is a continuation of application No. 16/307,389, granted, now 10,752,003, previously published as PCT/JP2017/021276, filed on Jun. 8, 2017.
Claims priority of application No. 2016-116155 (JP), filed on Jun. 10, 2016; application No. 2016-203332 (JP), filed on Oct. 17, 2016; application No. 2016-208864 (JP), filed on Oct. 25, 2016; and application No. 2017-036333 (JP), filed on Feb. 28, 2017.
Prior Publication US 2023/0311524 A1, Oct. 5, 2023
Int. Cl. B41J 2/175 (2006.01); B41J 29/13 (2006.01)
CPC B41J 2/17506 (2013.01) [B41J 2/17509 (2013.01); B41J 2/17523 (2013.01); B41J 2/17553 (2013.01); B41J 2/17596 (2013.01); B41J 29/13 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An ink refill container for refilling ink to an ink tank through a needle of the ink tank, the ink refill container comprising:
a container main body configured to contain the ink; and
an ink outlet portion connected to the container main body, the ink outlet portion including:
a cylindrical portion forming an ink outlet on an inner circumferential side of the cylindrical portion;
a positioning surface disposed within the cylindrical portion; and
a valve disposed within the cylindrical portion,
wherein the positioning surface is configured such that, in a state in which a needle has been inserted in the cylindrical portion to open the valve, the positioning surface contacts the needle.