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. 26, 2019
Filed:
Jun. 04, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Asuna Fukamachi, Kashiwa, JP;
Masanobu Tanaka, Kashiwa, JP;
Suguru Takeuchi, Funabashi, JP;
Oki Kitagawa, Nagareyama, JP;
Yasuharu Toratani, Abiko, JP;
Keita Ishiguro, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A fixing device includes first and second rotatable members that form a nip for fixing a toner image on a recording material, and a pressing mechanism that presses one of the first and second rotatable members toward the other. A pressure P1 at a first position, in an upstream side of a center of a recording material feeding direction, and which is a maximum pressure in the nip, an average pressure P0 from the first position to a second position, which is a downstream end of the nip in the recording material feeding direction, a toner melt viscosity M1 at the first position, and a toner melt viscosity M2 at the second position, satisfy: 0.3 MPa≤P1≤0.6 MPa, 0<P0≤0.25 MPa, 1.0×10Pa·s≤M1<1.0×10Pa·s, and 0.5×10Pa·s≤M2≤1.0×10Pa·s.