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:
Aug. 22, 2017
Filed:
May. 18, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Masataka Kato, Yokohama, JP;
Kazuo Suzuki, Yokohama, JP;
Masaya Uetsuki, Yokohama, JP;
Toshimitsu Danzuka, Tokyo, JP;
Tsuyoshi Ibe, Yokohama, JP;
Shin Genta, Yokohama, JP;
Tomoki Yamamuro, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An inkjet printing apparatus includes a printhead, a subtank for storing ink to be supplied to the printhead, a maintank for storing ink to be supplied to the subtank, a valve that can be switched between an open state in which the printhead communicates with the subtank and a closed state in which the printhead does not communicate with the subtank, a cap for covering an discharging port surface of the printhead, a pump for generating a negative pressure in an inside of the cap with the cap covering the discharging port surface, and an internal pressure changing member for changing an internal pressure of the subtank to perform a subtank filling operation in which ink is supplied from maintank to the subtank.