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:
Jan. 01, 2013
Filed:
Jun. 07, 2011
Tsunenori Soma, Kawasaki, JP;
Junya Kawase, Yokohama, JP;
Tsunenori Soma, Kawasaki, JP;
Junya Kawase, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a continuous liquid ejection apparatus, when pressurizing ink with a pump and initiating ejection, the problem of a stable ink column and droplets not being formed if ink is ejected in a low ink pressure state and large droplets or droplets with unstable flight directions being formed is solved. The space where droplets fly is sealed in order to raise the pressure of ink inside a liquid chamber communicating with a nozzle up to a pressure suitable for droplet-forming condition, while the pressure of gas in the sealed space is raised corresponding to the rise in pressure of the liquid to suppress ejection from the nozzle. After the pressure of the ink is raised to pressure suitable for droplet-forming condition, the sealed space is opened to the atmosphere and ink is ejected all at once.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile