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. 03, 2023
Filed:
Nov. 18, 2021
Hitoshi Fujiwara, Kanagawa, JP;
Hitoshi Fujiwara, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A fixing device includes a fixing rotator, a heater, a pressure rotator, a stay, a biasing member fixed to the stay, and a nip formation pad. The nip formation pad is supported by the stay, disposed inside the fixing rotator, and forms a nip. The nip formation pad includes at least one engaged portion at a position other than both ends of the nip formation pad or engaged portions at both ends of the nip formation pad. The at least one engaged portion engages an engaging portion in the stay to generate a first rotational moment. The engaged portions at both ends engage engaging portions in the stay to generate a second rotational moment. Each rotational moment is smaller than a rotational moment generated by engagement between an engaging portion in the stay and an engaged portion at only one end of the nip formation pad.