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.

Date of Patent:
Mar. 07, 2017

Filed:

Mar. 17, 2016
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Masataka Kato, Yokohama, JP;

Masaya Uetsuki, Yokohama, JP;

Toshimitsu Danzuka, Tokyo, JP;

Kazuo Suzuki, Yokohama, JP;

Tsuyoshi Ibe, Yokohama, JP;

Shin Genta, Yokohama, JP;

Asako Tomida, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 29/393 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04573 (2013.01); B41J 2/04586 (2013.01); B41J 2/17566 (2013.01);
Abstract

An ink jet recording apparatus is capable of suppressing an increase of waste ink while solving an increase in density of ink within a supply tube. An ink jet recording apparatus according to the present invention includes a recording head configured to discharge ink, a tank configured to store ink, a supply tube configured to supply ink to the recording head from the tank, a discharge unit configured to execute a discharge operation for discharging ink within the supply tuber a control unit configured to make the discharge unit execute a discharge operation when an elapsed time from a previous discharge operation is greater than a predetermined time, and a changing unit configured to change at least any one of the elapsed time or the predetermined time based on an ink consumption amount consumed through the recording head after the previous discharge operation.


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