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. 27, 2021
Filed:
Sep. 18, 2019
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Eiji Shinohara, Mishima Shizuoka, JP;
Kazuhiko Kikuchi, Yokohama Kanagawa, JP;
Sasuke Endo, Chigasaki Kanagawa, JP;
Masaya Tanaka, Sunto Shizuoka, JP;
Ryota Saeki, Sunto Shizuoka, JP;
Kousei Miyashita, Sunto Shizuoka, JP;
Ryosuke Kojima, Sunto Shizuoka, JP;
Yohei Doi, Mishima Shizuoka, JP;
Yuki Kawashima, Tagata Shizuoka, JP;
Kiyotaka Murakami, Mishima Shizuoka, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes a heater, a fixing device, and a controller. The heater includes a heat generator that generates heat when the heater is turned on. The fixing device may fix a developer image on a surface of an image forming medium using the heat from the heat generator. The controller detects a voltage of a power supply for supplying electric power to the heater, and determines an occurrence of an abnormality in the heater if a voltage drop amount at the time the heater is turned on as compared to a case in which the heater is turned off is smaller than a first threshold value.