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:
Sep. 27, 2011
Filed:
Oct. 07, 2008
Nobutaka Takeuchi, Yokohama, JP;
Shin Hasegawa, Zama, JP;
Hitoshi Ishibashi, Kamakura, JP;
Shuji Hirai, Tokyo, JP;
Kohta Fujimori, Yokohama, JP;
Kayoko Tanaka, Machida, JP;
Yushi Hirayama, Sagamihara, JP;
Akira Yoshida, Kawasaki, JP;
Nobutaka Takeuchi, Yokohama, JP;
Shin Hasegawa, Zama, JP;
Hitoshi Ishibashi, Kamakura, JP;
Shuji Hirai, Tokyo, JP;
Kohta Fujimori, Yokohama, JP;
Kayoko Tanaka, Machida, JP;
Yushi Hirayama, Sagamihara, JP;
Akira Yoshida, Kawasaki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus and an image density control method for controlling image density in the image forming apparatus, involving adjusting a toner concentration control reference value in accordance with an amount of the toner replaced in a developing device so as to adjust the image density to maintain a consistent developability and changing image forming intervals in accordance with an amount of the toner replaced in the developing device during continuous printing operation.