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. 15, 2017
Filed:
Mar. 14, 2016
Takashi Soma, Kanagawa, JP;
Takuroh Sone, Kanagawa, JP;
Hideyuki Kihara, Kanagawa, JP;
Naoto Watanabe, Kanagawa, JP;
Takeshi Ogawa, Kanagawa, JP;
Takashi Soma, Kanagawa, JP;
Takuroh Sone, Kanagawa, JP;
Hideyuki Kihara, Kanagawa, JP;
Naoto Watanabe, Kanagawa, JP;
Takeshi Ogawa, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An electrophotographic image forming apparatus for forming an image in accordance with image information includes: an image forming unit configured to form an image that is uniform in area percentage of each of primary colors and a secondary color on an intermediate transfer belt; a measurer configured to measure amounts corresponding to density distribution of residual toner left on the intermediate transfer belt, on which the image uniform in area percentage of each of the primary colors and the secondary color is formed and from which toner is transferred onto a recording medium, in the main-scanning direction; and a corrector configured to correct a tone value of the image information so as to reduce density nonuniformity of a streak region observed in the density distribution in the main-scanning direction using the amounts measured by the measurer.