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. 20, 2011
Filed:
Apr. 16, 2008
Satoru Tao, Ibaraki, JP;
Makoto Nakura, Ibaraki, JP;
Satoru Tao, Ibaraki, JP;
Makoto Nakura, Ibaraki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
In a belt device, a first detecting unit detects a widthwise displacement of a belt, and a correcting unit corrects displacement of the belt in the width direction during a period starting from turning power on and ending with completion of drive preparation of the belt based on the widthwise displacement. Moreover, a second detecting unit detects whether the belt has displaced in the width direction by an amount that is greater than a threshold, and a belt stopping unit stops running of the belt when the second detecting unit detects that the belt has displaced by an amount that is greater than the threshold.