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:
May. 29, 2012
Filed:
Mar. 02, 2010
Noriaki Yamashita, Shiojiri, JP;
Noriaki Yamashita, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting apparatus includes a liquid ejecting head with a group of nozzles. The liquid ejecting apparatus drives a pressure generating element to generate pressure variation in a liquid in a pressure generating chamber and ejects the liquid from the nozzles using the pressure variation. A driving signal generating unit generates a driving signal including an ejection driving pulse which drives the pressure generating element. An ejection control unit controls application of the ejection driving pulse to the pressure generating element to control a liquid ejecting operation of the liquid ejecting head. The driving signal generating unit generates first and second ejection driving pulses. The ejection control unit calculates a timing at which the amount of the ejected liquid becomes a predetermined correction target value in transition of the ejected liquid amount of each nozzle from a start of the ejecting operation.