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. 06, 2012
Filed:
Sep. 14, 2010
Naoko Kitaoka, Kanagawa, JP;
Naoko Kitaoka, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes a recording head having nozzles ejecting liquid droplets, a liquid chamber in communication with the nozzles, a pressure generator unit generating pressure inside the liquid chamber, and a head drive control unit to generate a drive waveform having plural drive pulses arranged in time series, each of the drive pulses having waveform components, to form an ejecting pulse for ejecting the liquid droplets by selecting one or more of the plural drive pulses based on a corresponding one of liquid droplet sizes and supply the formed ejecting pulse to the pressure generator unit. In the image forming apparatus, when the ejecting pulse is formed by selecting one or more of the plural drive pulses, shapes of the waveform components of the selected plural drive pulses are partially changed based on the corresponding one of the liquid droplet sizes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile