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:
Nov. 20, 2012
Filed:
Oct. 28, 2010
Hiroyuki Matsuo, Shiojiri, JP;
Hiroyuki Matsuo, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The driving signal generation unit generates a leading driving pulse that is ahead in a unit cycle and a following driving pulse that follows the leading driving pulse; the leading driving pulse is set so that, in the case where liquid droplets are ejected simultaneously from multiple adjacent nozzles, the flight speed of the ejected liquid droplets located toward the central area in a nozzle row direction is higher than the flight speed of the ejected liquid droplets located toward the end areas in the nozzle row direction; and the following driving pulse is set so that, of the liquid droplets simultaneously ejected from the multiple adjacent nozzles, the flight speed of the ejected liquid droplets located toward the end areas is higher than the flight speed of the liquid droplets located toward the central area.