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:
Jun. 23, 2026
Filed:
Sep. 24, 2024
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Hiroshi Ota, Tokyo, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes an image forming mechanism configured to form a developer image and transfer the formed developer image onto a medium and a fixing unit. The fixing unit includes a fixing member that contacts the medium the developer image is transferred onto, a heat source arranged to supply heat to the fixing member, a first temperature sensor that detects a temperature of a first region, and a second temperature sensor that detects a temperature of a second region of the fixing member. The image forming apparatus includes a controller that outputs information indicating an abnormality of the temperature detected by the first or the second temperature sensor, based on a difference between a first and a second estimation value. The first estimation value is an estimate of a temperature of the first region. The second estimation value is an estimate of a temperature of the second region.