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. 30, 2011
Filed:
Nov. 03, 2006
Osamu Ariizumi, Kanagawa, JP;
Kazumi Kobayashi, Tokyo, JP;
Shinji Kobayashi, Kanagawa, JP;
Fukutoshi Uchida, Kanagawa, JP;
Takashi Enami, Kanagawa, JP;
Ryohta Morimoto, Kanagawa, JP;
Shin Hasegawa, Kanagawa, JP;
Shinji Kato, Kanagawa, JP;
Hitoshi Ishibashi, Kanagawa, JP;
Kohta Fujimori, Kanagawa, JP;
Nobutaka Takeuchi, Kanagawa, JP;
Kayoko Tanaka, Tokyo, JP;
Yushi Hirayama, Kanagawa, JP;
Naoto Watanabe, Kanagawa, JP;
Osamu Ariizumi, Kanagawa, JP;
Kazumi Kobayashi, Tokyo, JP;
Shinji Kobayashi, Kanagawa, JP;
Fukutoshi Uchida, Kanagawa, JP;
Takashi Enami, Kanagawa, JP;
Ryohta Morimoto, Kanagawa, JP;
Shin Hasegawa, Kanagawa, JP;
Shinji Kato, Kanagawa, JP;
Hitoshi Ishibashi, Kanagawa, JP;
Kohta Fujimori, Kanagawa, JP;
Nobutaka Takeuchi, Kanagawa, JP;
Kayoko Tanaka, Tokyo, JP;
Yushi Hirayama, Kanagawa, JP;
Naoto Watanabe, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus, which comprises a toner density detection device for detecting the density of a toner inside a developing device, acquires the number of pixels from inputted image information, calculates the toner replenishment amount from the toner density detection value and the information on the pixels, and thereby performs replenishment control so that excessive replenishment or insufficient replenishment of the toner is not caused. The upper limit value of the amount of toner to be replenished at once to the developing device is changed in accordance with the amount of information on an input image such as the image area, pixels of the input image.