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:
May. 06, 2014
Filed:
Feb. 06, 2012
Shuutaroh Yuasa, Kanagawa, JP;
Masanao Ehara, Kanagawa, JP;
Tadashi Ogawa, Tokyo, JP;
Satoshi Ueno, Tokyo, JP;
Hiroshi Seo, Kanagawa, JP;
Teppei Kawata, Kanagawa, JP;
Shuntaroh Tamaki, Kanagawa, JP;
Takamasa Hase, Tokyo, JP;
Kazuya Saito, Kanagawa, JP;
Kensuke Yamaji, Kanagawa, JP;
Shuutaroh Yuasa, Kanagawa, JP;
Masanao Ehara, Kanagawa, JP;
Tadashi Ogawa, Tokyo, JP;
Satoshi Ueno, Tokyo, JP;
Hiroshi Seo, Kanagawa, JP;
Teppei Kawata, Kanagawa, JP;
Shuntaroh Tamaki, Kanagawa, JP;
Takamasa Hase, Tokyo, JP;
Kazuya Saito, Kanagawa, JP;
Kensuke Yamaji, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing device includes a fixing rotary body rotatable in a predetermined direction of rotation to radiate infrared rays; a pressing rotary body, rotatable in a direction counter to the direction of rotation of the fixing rotary body, pressed against the fixing rotary body to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed; a heater disposed opposite the fixing rotary body to heat the fixing rotary body; a temperature detector spaced apart from the fixing rotary body to detect a temperature of the fixing rotary body based on the infrared rays from the fixing rotary body and disposed below the fixing nip in a vertical direction; and a tube disposed between the fixing rotary body and the temperature detector, the tube through which the infrared rays from the fixing rotary body enter the temperature detector.