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:
Apr. 27, 2010
Filed:
Sep. 29, 2006
Kanji Nagashima, Kanagawa, JP;
Kanji Nagashima, Kanagawa, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
A liquid ejecting apparatus with a pressure chamber connected to an ejection nozzle that applies pressure to liquid that causes the liquid to be ejected from the nozzle. An actuator is provided to vibrate a free surface of the liquid in the nozzle without ejecting the liquid from the nozzle. A viscosity state judgment device judges the existence of a first viscosity state near the free surface of the liquid indicating that liquid ejection from the nozzle is possible without applying vibrations, a second state indicating that liquid ejection from the nozzle is possible if vibrations are applied, and a third state indicating that liquid ejection from the nozzle is not possible but restoration to the first state is possible if the vibrating action is performed. A control device then controls liquid ejection from the nozzle based on the judged state.