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:
Oct. 25, 2016
Filed:
Sep. 18, 2014
Applicant:
Canon Finetech Inc., Misato-shi, Saitama, JP;
Inventors:
Assignee:
Canon Finetech, Inc., Misato-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01); B41J 2/175 (2006.01); B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17566 (2013.01); B41J 2/14 (2013.01); B41J 2/175 (2013.01); B41J 2/1752 (2013.01); B41J 29/38 (2013.01); B41J 2002/17579 (2013.01);
Abstract
An ink jet printing apparatus includes a print head configured to be able to eject an ink fed from an ink tank that contains the ink in a closed space so as to apply a negative pressure to the ink, a communication path configured to allow a liquid chamber in the print head to communicate with an outside of the liquid chamber, an opening and closing unit configured to open and close the communication path, and a control unit configured to open the communication path in accordance with a pressure in the print head via the opening and closing unit, to bring the liquid chamber and the outside into communication with each other.