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. 05, 2018
Filed:
Dec. 23, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroyuki Kadowaki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A fixing device includes a cylindrical film, and a heater including a substrate, a first heat generating resistor, and a second heat generating resistor. A controller controls supply of electric power to the heater using one of PID control and PD control on the basis of a deviation between a target temperature and a detected temperature detected by a temperature detecting member, such that the temperature of the heater is maintained at the target temperature. A proportional gain of the PID control or the PD control when the first heat generating resistor is supplied with the electric power and the second heat generating resistor is not supplied with the electric power is less than a proportional gain of the PID control or the PD control when the first heat generating resistor is not supplied with the electric power and the second heat generating resistor is supplied with the electric power.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile