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:
Dec. 28, 2021
Filed:
Aug. 26, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The image forming apparatus including a fixing unit having a heat generation member; a switch unit configured to connect or disconnect a power supply path from an AC power supply to the heat generation member; a temperature detection unit configured to detect a temperature of the heat generation member; a control unit configured to perform operations to supply power to the heat generation member by controlling the switch unit according to a detection result of the temperature detection unit; a setting unit configured to set the switch unit to a state in which the switch unit cuts off the power supply path upon detecting an overheating state of the heat generation member based on a detection result of the temperature detection unit; and a first switch configured to supply or cut off a first driving voltage that drives the setting unit.