US 11,912,036 B2
Ink tank and ink jet printing apparatus
Koki Shimada, Kawasaki (JP); Hideaki Matsumura, Kawasaki (JP); Masaya Shimmachi, Kawasaki (JP); Yukimichi Kimura, Kawasaki (JP); Junichi Kubokawa, Kawasaki (JP); Takahiro Kiuchi, Fuchu (JP); Yusuke Tanaka, Kawasaki (JP); and Kyohei Sato, Kawasaki (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 29, 2021, as Appl. No. 17/489,558.
Application 17/489,558 is a continuation of application No. 16/370,695, filed on Mar. 29, 2019, granted, now 11,167,556.
Application 16/370,695 is a continuation of application No. 15/336,572, filed on Oct. 27, 2016, granted, now 10,272,688, issued on Apr. 30, 2019.
Claims priority of application No. 2015-214969 (JP), filed on Oct. 30, 2015.
Prior Publication US 2022/0016891 A1, Jan. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17503 (2013.01) [B41J 2/175 (2013.01); B41J 2/1754 (2013.01); B41J 2/17513 (2013.01); B41J 2/17523 (2013.01); B41J 2/17553 (2013.01); B41J 2/17559 (2013.01)] 32 Claims
OG exemplary drawing
 
1. An ink tank comprising:
a tank container including:
(i) a first chamber configured to store ink therein, the first chamber having a first opening on a first outer surface of the tank container and a first sidewall on a second outer surface of the tank container, the second outer surface being opposite to the first outer surface,
(ii) an injection port, detachably capped by a tank cap, configured to allow the ink to be injected into the first chamber, and
(iii) a second chamber configured to store air therein, the second chamber having a second opening on the second outer surface and a second sidewall on the first outer surface;
a first cover configured to cover the first opening and not to cover the second opening; and
a second cover configured to cover the second opening and not to cover the first opening.