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:
Nov. 08, 2011
Filed:
May. 14, 2008
Takaaki Ebe, Tokyo, JP;
Takaaki Ebe, Tokyo, JP;
Oki Data Corporation, Tokyo, JP;
Abstract
A developing device includes a developer supporting member abutting against an image supporting member for developing a static latent image on the image supporting member. In a state that a film member is disposed between the image supporting member and the developer supporting member, it is arranged such that the film member is extended with a tensional force N (N) when the image supporting member and the developer supporting member rotate. The tensional force N has a relationship as follows:(×exp(0.32×−16))/≦11.6where A (mm) is a difference between an outer diameter of a center portion of the developer supporting member and an outer diameter of an end portion of the developer supporting member; B (mm) is a wobble amount of the end portion of the developer supporting member; and F (degree) is an Asker C hardness of the developer supporting member.