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:
Dec. 27, 2016
Filed:
Oct. 07, 2015
Tomokazu Kanzawa, Kanagawa, JP;
Tomokazu Kanzawa, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid droplet discharge device includes pressure chambers in communication with nozzles, wherein the pressure chambers are for storing ink; an oscillation plate that is disposed over the pressure chambers, so that an elastic wall of each of the pressure chambers is formed; pressure generating elements that are disposed to face the pressure chambers through the oscillation plate; a drive waveform generator for generating, for each of the nozzles, a drive waveform by using drive waveform data that indicates a shape of the drive waveform for driving the corresponding pressure generating element; a residual oscillation detector for detecting residual oscillation that is generated in each of the pressure chambers after driving the pressure generating elements; and a controller for correcting, during printing, the drive waveform data for each of the nozzles, based on a detection result by the residual oscillation detector.