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:
Aug. 12, 2008
Filed:
Dec. 05, 2005
Akiko Kitami, Hino, JP;
Kazuo Asano, Hino, JP;
Akiko Kitami, Hino, JP;
Kazuo Asano, Hino, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
A liquid droplet ejecting apparatus having: a pressurizing device; a pressure generation chamber whose volume expands or contracts by a movement of the pressurizing device; a liquid droplet ejecting head having a nozzle communicating with the pressure generation chamber; and a drive signal generator which generates the drive signal for operating the pressurizing device, and causing to eject liquid droplets through the nozzle, wherein the drive signal comprises: an expansion pulse to expand the volume of the pressure generation chamber; a first contraction pulse following the expansion pulse to contract the volume; and a second contraction pulse after the first contraction pulse to contract the volume, wherein a pulse width of the expansion pulse is 0.7AL through 1.3AL, and a pulse width of the first contraction pulse is 0.3 AL through 1.5 AL, where AL is ½ of an acoustic resonance period of the pressure generation chamber.