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:
Dec. 17, 2013
Filed:
Apr. 14, 2011
Yuji Kanome, Yokohama, JP;
Hiroyuki Tanaka, Kawasaki, JP;
Yoshiaki Suzuki, Nagareyama, JP;
Seiji Suzuki, Ebina, JP;
Masahiro Sugimoto, Yokohama, JP;
Takeaki Nakano, Inagi, JP;
Susumu Hirosawa, Tokyo, JP;
Yuji Kanome, Yokohama, JP;
Hiroyuki Tanaka, Kawasaki, JP;
Yoshiaki Suzuki, Nagareyama, JP;
Seiji Suzuki, Ebina, JP;
Masahiro Sugimoto, Yokohama, JP;
Takeaki Nakano, Inagi, JP;
Susumu Hirosawa, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is a printing apparatus in which bubbles in a print head are easily removed. The printing apparatus includes a first one-way valve disposed between the pump and the ink tank in the collection channel, the first one-way valve allowing movement of ink from the pump to the ink tank and blocking movement of ink from the ink tank to the pump; a circulation channel that connects the ink tank to the collection channel at a position between the pump and the first one-way valve, the circulation channel enabling circulation of ink from the ink tank, through the print head, and to the ink tank; and a second one-way valve disposed in the circulation channel, the second one-way valve allowing movement of ink from the ink tank to the pump and blocking movement of ink from the pump to the ink tank.