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:
Dec. 15, 2015
Filed:
Mar. 13, 2014
Kazuhiro Kotaka, Kanagawa, JP;
Eiri Sagae, Kanagawa, JP;
Satoshi Kai, Kanagawa, JP;
Yoshihisa Hara, Kanagawa, JP;
Yuusuke Arai, Kanagawa, JP;
Kazuhiro Kotaka, Kanagawa, JP;
Eiri Sagae, Kanagawa, JP;
Satoshi Kai, Kanagawa, JP;
Yoshihisa Hara, Kanagawa, JP;
Yuusuke Arai, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
There is provided a grinding roller for use in a fixing device including a pair of rotary fixing members that rotate while being pressed against each other to form an area of contact, and heat and press a recording medium carrying an unfixed toner image and fed to the area of contact, to thereby fix the unfixed toner image on the recording medium. The grinding roller is configured to grind a surface of a toner image-side rotary member of the pair of rotary fixing members that comes into contact with the unfixed toner image. The grinding roller includes an abrasive grain layer including abrasive grains, forming a surface layer of the grinding roller, and having a surface with irregularities including projections each formed by an aggregate of some of the abrasive grains and larger in size than each of the abrasive grains and recesses formed between the projections.