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. 12, 2014
Filed:
Mar. 05, 2012
Naoki Nakatake, Hyogo, JP;
Tomohiro Kubota, Osaka, JP;
Shoh Tsuritani, Osaka, JP;
Yuji Nagatomo, Osaka, JP;
Yasuhide Matsuno, Osaka, JP;
Hiroaki Katoh, Kyoto, JP;
Tomoya Adachi, Hyogo, JP;
Rumi Miyazaki, Osaka, JP;
Takafumi Miyazaki, Osaka, JP;
Takeshi Yamashita, Osaka, JP;
Kyoko Abe, Osaka, JP;
Yasuhiro Fujiwara, Osaka, JP;
Takahiro Sanada, Osaka, JP;
Naoki Nakatake, Hyogo, JP;
Tomohiro Kubota, Osaka, JP;
Shoh Tsuritani, Osaka, JP;
Yuji Nagatomo, Osaka, JP;
Yasuhide Matsuno, Osaka, JP;
Hiroaki Katoh, Kyoto, JP;
Tomoya Adachi, Hyogo, JP;
Rumi Miyazaki, Osaka, JP;
Takafumi Miyazaki, Osaka, JP;
Takeshi Yamashita, Osaka, JP;
Kyoko Abe, Osaka, JP;
Yasuhiro Fujiwara, Osaka, JP;
Takahiro Sanada, Osaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image developing device includes a developer supporting body; a first conveyance path in which a first conveyance member is arranged; a second conveyance path in which a second conveyance member is arranged; and a partition member that partitions the first conveyance path and the second conveyance path and that has a first communication port and a second communication port. The first communication path and the second communication path communicates with each other through the first communication port and the second communication port. The image developing device includes a developer amount detection unit that includes an optical detection unit arranged in the second conveyance path and that optically detects an amount of the developer in the image forming device. The developer is caused to accumulate in the vicinity of the developer amount detection unit.