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:
Nov. 26, 2013
Filed:
Oct. 26, 2010
Hiroshi Yoshino, Kawasaki, JP;
Takashi Nojima, Tokyo, JP;
Yuji Nakano, Kawasaki, JP;
Yoshitaka Okamura, Yamato, JP;
Masakazu Tsukuda, Yokohama, JP;
Kanto Kurasawa, Yokohama, JP;
Hiroshi Yoshino, Kawasaki, JP;
Takashi Nojima, Tokyo, JP;
Yuji Nakano, Kawasaki, JP;
Yoshitaka Okamura, Yamato, JP;
Masakazu Tsukuda, Yokohama, JP;
Kanto Kurasawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection apparatus includes a pressure sensor and a determining unit. The pressure sensor is configured to detect a pressure in an ink supply path for use in supplying ink from an ink tank to a recording head. The determining unit determines whether the ink supply path is anomalous based on a result of detection of the pressure in the ink supply path by the pressure sensor performed in response to application of a fluctuating pressure to the ink in the ink tank.