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. 16, 2016
Filed:
Dec. 08, 2014
Oki Data Corporation, Tokyo, JP;
Michiaki Ito, Tokyo, JP;
Takayuki Takazawa, Tokyo, JP;
OKI DATA CORPORATION, Tokyo, JP;
Abstract
An image forming apparatus includes: a plurality of rollers including a first roller rotated by receiving rotation from a drive unit and a second roller rotated with the rotation of the first roller; a belt stretched around the plurality of rollers, the belt having an inner surface; and a tension applying unit that applies tension to the belt. The inner surface of the belt has an uneven shape. Each of at least one roller of the plurality of rollers satisfies conditions expressed by μkmax≦0.73 and Δμk=(μkmax−μkmin)≦0.51, where μkmax is a maximum dynamic friction coefficient between the inner surface of the belt and the roller, and μkmin is a minimum dynamic friction coefficient between the inner surface of the belt and the roller.