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:
Oct. 18, 2011
Filed:
Nov. 15, 2007
Shigetoshi Hosaka, Kanagawa, JP;
Masakazu Yoshida, Kanagawa, JP;
Taku Satoh, Kanagawa, JP;
Takashi Kimura, Kanagawa, JP;
Shigetoshi Hosaka, Kanagawa, JP;
Masakazu Yoshida, Kanagawa, JP;
Taku Satoh, Kanagawa, JP;
Takashi Kimura, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image processing method configured to produce image data output from an image forming apparatus configured to form an image by using a recording head composed of a liquid ejecting head having plural arranged nozzles configured to eject a liquid drop and an energy generating device configured to generate ejection energy corresponding to each nozzle while conducting a halftone processing configured to covert input image data to an N value which is less than a tone (M value) thereof (N value: M>N≧2) is provided, wherein a halftone processing configured to substantially reduce a driving frequency of a driving wave pattern applied to the energy generating device is conducted when a liquid drop with a drop size causing ejection irregularity or a liquid drop from a nozzle causing ejection irregularity is ejected.