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:
Jun. 09, 2015
Filed:
Mar. 27, 2014
Shingo Suzuki, Kanagawa, JP;
Satoshi Kaneko, Kanagawa, JP;
Shuji Hirai, Tokyo, JP;
Koichi Kudo, Kanagawa, JP;
Jun Yamane, Kanagawa, JP;
Shinji Kato, Kanagawa, JP;
Shingo Suzuki, Kanagawa, JP;
Satoshi Kaneko, Kanagawa, JP;
Shuji Hirai, Tokyo, JP;
Koichi Kudo, Kanagawa, JP;
Jun Yamane, Kanagawa, JP;
Shinji Kato, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes an image carrier; an image forming unit; a processor for controlling the image forming unit according to a predetermined image forming condition setting data; an image density sensor to detect an image density of the toner pattern formed on the image carrier; a reference rotary position detector; an image density fluctuation data acquisition unit to obtain an image density fluctuation data of more than one circumferential length of the photoreceptor drum with reference to the reference rotary position detected by the reference rotary position detector based on a result related to the toner pattern formed on the image carrier detected by the image density sensor; and a correction data generator to generate a correction data to correct a reference image forming condition setting data with a correction amount corresponding to each rotary position of the rotary member to thus reduce the image density fluctuation.