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. 01, 2016
Filed:
Sep. 10, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Masahito Omata, Yokohama, JP;
Shoichiro Ikegami, Yokohama, JP;
Masahiko Suzumi, Yokohama, JP;
Terutaka Endo, Kawasaki, JP;
Takeshi Niimura, Yokohama, JP;
Takehiko Suzuki, Yokohama, JP;
Toshihiko Ochiai, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The fixing device includes a rotary member for contacting the unfixed toner image, a pressure member for forming the nip portion by contacting the rotary member, and a cover for covering the rotary member with a space between the rotary member and the cover. In a cross section of the fixing device, the cross section being orthogonal to a generatrix direction of the rotary member, the shortest distance (H) between the nip portion and a farthest surface portion of the rotary member farthest away from a surface portion forming the nip portion of the rotary member, the maximum width (W) of the rotary member in the conveyance direction of the recording member, and an area (S) of the space in a range of the maximum width W in the cross section satisfy with a relationship of S/W≧0.7×H.