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:
Feb. 16, 2016
Filed:
Jan. 21, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Shinya Komatsu, Nagano, JP;
Kenji Otokita, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/0451 (2013.01); B41J 2/04581 (2013.01); B41J 2/14274 (2013.01); B41J 2002/14354 (2013.01);
Abstract
An ink jet printer is provided with discharge heads configured to discharge ink which is filled into a cavity from a nozzle which is linked with a cavity due to the capacity of the cavity changing according to vibrating of a vibration plate which is vibrated by a piezoelectric element, a head driver configured to drive the piezoelectric element, and a detecting section configured to detect the state of the discharge heads. The detecting section is configured to detect the state of the discharge heads within a specific period of time after driving of the piezoelectric element is stopped.