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:
May. 24, 2016
Filed:
Jul. 01, 2015
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Yoshinori Misumi, Tokyo, JP;
Ichiro Saito, Yokohama, JP;
Maki Kato, Fuchu, JP;
Yuzuru Ishida, Yokohama, JP;
Norihiro Yoshinari, Kawasaki, JP;
Akio Goto, Tokyo, JP;
Takahiro Matsui, Yokohama, JP;
Kenji Takahashi, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/165 (2006.01); B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/16517 (2013.01); B41J 2/14072 (2013.01); B41J 2/14129 (2013.01);
Abstract
A method for cleaning a liquid ejection head which includes applying a voltage to a coating layer of the liquid ejection head to cause the coating layer to be eluted in a liquid so that kogation deposited on a coating layer is removed. When removing kogation deposited on the coating layer, temperatures of the liquids in the liquid chambers are selectively changed among a plurality of liquid chambers.