The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2020
Filed:
Dec. 19, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kenji Hasegawa, Kawasaki, JP;
Yasuyuki Tamura, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); B41J 2/18 (2006.01); B41J 2/19 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17566 (2013.01); B41J 2/175 (2013.01); B41J 2/17563 (2013.01); B41J 2/18 (2013.01); B41J 2/19 (2013.01); B41J 2002/17579 (2013.01);
Abstract
There is provided a liquid ejection apparatus configured to circulate ink between an ink tank and an ejection head, the liquid ejection apparatus being capable of suppressing degradation of an ejection performance with a simple, inexpensive, and compact configuration. For this purpose, the liquid ejection apparatus measures impedance of the ink, and supplies, based on this measurement result, an adjusting liquid to a circulating ink.