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:
Jan. 14, 2020
Filed:
Dec. 03, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Atsushi Iwasaki, Susono, JP;
Masato Sako, Mishima, JP;
Shotaro Yoshimura, Mishima, JP;
Ryota Ogura, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image heating apparatus includes a first and second heat generating elements, a thyristor that controls electrical power supplied to the heat generating elements, and a relay that switches a supply destination of the electrical power supply between the heat generating elements. A controller switches the thyristor from on to off, and then actuates the relay to switch the supply destination from the first heat generating element to the second heat generating element, and, thereafter switches the thyristor from off to on. The controller sets a timing of switching of the thyristor from on to off to be in a period in which an image on a current recording material is in a nip, and sets timing of switching of the thyristor from off to on to be in a period in which an image on a current recording material or a subsequent recording material is not in the nip.