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:
Jul. 01, 2014
Filed:
Jun. 24, 2010
Mikiko Imazeki, Kanagawa, JP;
Yasushi Nakazato, Tokyo, JP;
Osamu Satoh, Kanagawa, JP;
Masahide Yamashita, Tokyo, JP;
Jun Yamane, Kanagawa, JP;
Kohji Ue, Kanagawa, JP;
Mikiko Imazeki, Kanagawa, JP;
Yasushi Nakazato, Tokyo, JP;
Osamu Satoh, Kanagawa, JP;
Masahide Yamashita, Tokyo, JP;
Jun Yamane, Kanagawa, JP;
Kohji Ue, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
An apparatus, system, and method of predicting failure of a fixing device of an image forming apparatus are provided. Based on a plurality of sheet transfer time values of the fixing device, a first characteristic value that is an average value of the plurality of sheet transfer time values, and at least one of a second characteristics value that indicates the variance of the plurality of sheet transfer time values and a third characteristics value that indicates the maximum value of the plurality of sheet transfer time values are calculated. Using a determination result generated based on the first characteristics value and the at least one of the second and third characteristics values, failure of the fixing device is predicted.