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:
Mar. 05, 2019
Filed:
Oct. 19, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Kouji Yasukawa, Tokyo, JP;
Tsuyoshi Yamaguchi, Ichikawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A fixing apparatus includes a transformer, a heater, a temperature acquiring portion, and control portion. A first switching unit allows or cuts off power supply from a primary-side circuit to the heater by supplying power, and a second switching unit allows or cuts off power supply from the primary-side circuit to the temperature acquiring portion by supplying power. The power supply to the heater can be allowed or cut off according to the temperature of the heater acquired by the temperature acquiring portion. In addition, the control portion cuts off power supply from the primary-side circuit to the heater and power supply from the primary-side circuit to the temperature acquiring portion by controlling operations of the first switching unit and the second switching unit with the one signal.