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. 28, 2013
Filed:
Sep. 28, 2010
Hiroyuki Matsuo, Shiojiri, JP;
Hiroyuki Matsuo, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The ejection driving pulse is a voltage waveform including: a first variation section; a hold section; and a second variation section. The second variation section includes: a first variation component in which the potential is varied in the second direction from the termination potential of the first variation section; an intermediate hold component in which the termination potential of the first variation component holds for a given time; and a second variation component in which the potential is varied in the second direction from the termination potential of the first variation component. The potential of the intermediate hold component is in the range from 50% to 60% of the potential of the hold section. A potential inclination of the second variation component is steeper than a potential inclination of the first variation component.