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. 13, 2011
Filed:
Dec. 03, 2008
Shuichi Ide, Tokyo, JP;
Ken Tsuchii, Sagamihara, JP;
Arihito Miyakoshi, Tokyo, JP;
Yasuhiko Osaki, Kawasaki, JP;
Shuichi Murakami, Kawasaki, JP;
Hiroshi Arimizu, Kawasaki, JP;
Shuichi Ide, Tokyo, JP;
Ken Tsuchii, Sagamihara, JP;
Arihito Miyakoshi, Tokyo, JP;
Yasuhiko Osaki, Kawasaki, JP;
Shuichi Murakami, Kawasaki, JP;
Hiroshi Arimizu, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet print head is capable of creating a state where the direction of ink-drop ejection is not likely to be influenced by air currents generated by the ink ejection, and is capable of printing an image without causing the shifting of dots. To this end, air currents generated by the ejection of ink and the interference among the air currents are reduced by blowing out gas in a direction parallel with the direction of the ink ejection. Accordingly, even with a print head that ejects, at high ejection frequency, ink from multiple ejecting openings formed densely, the advancing direction of the ink drops is unlikely to be deflected. As a consequence, a high-quality, uniform image can be outputted.