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:
May. 25, 2010
Filed:
Jan. 17, 2008
Hiroya Hirose, Sagamiwara, JP;
Hiroya Hirose, Sagamiwara, JP;
Ricoh Company Limited, Tokyo, JP;
Abstract
An image developer, including a developer bearer rotatable facing an electrostatic latent image bearer; a developer feeder feeding a developer including a toner to the developer bearer; a developer collector collecting the developer separated and left from the developer bearer after the developer is fed to the electrostatic latent image bearer; a detour route including a developer stirrer and transfer stirring and transferring the developer between the developer feeder and the developer collector; a first opening connecting the developer feeder with the detour route; a second opening connecting the detour route with the developer collector; a developer supplier supplying the developer to the image developer; and a third opening connecting to the developer supplier, wherein the toner has a volume-average particle diameter of from 3 to 8 μm and a ratio (Dv/Dn) of the volume-average particle diameter (Dv) to a number-average particle diameter (Dn) thereof of from 1.00 to 1.40.