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:
Feb. 15, 2011
Filed:
Jun. 24, 2008
Shoji Naruge, Matsudo, JP;
Shoji Naruge, Matsudo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
When dynamic torques are Ts, Ti, and T, respectively, and rotation angle speeds are Rs, R, and R, respectively, at the time of rotations of the developing sleeveand the screwsand, the mass of the developer housed in the second agitating chamberis M, the mass of the developer which is present in the space of the side of the developing sleeve when a space formed by the developing chamberand the first agitating chamberis divided is Ms, the mass of the developer which is present in the space of the side of the screwis M, gravitational acceleration is G, each load on the developer by rotations of the developing sleeve and the screws is defined as Wds (mW/g)=Rs×Ts×G/Ms, Wd(mW/g)=RTG/M, and Wd(mW/g)=R×T×G/M, respectively, relationships of 0.5<Wds/(Wd+Wd)≦7.0, 12.5≦Wds≦57.5, and Wd<Wdare satisfied.