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:
Jul. 30, 2019
Filed:
Jan. 31, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Yuya Hirano, Odawara, JP;
Fumiaki Mizuno, Nagoya, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 3/06 (2006.01); G03G 15/00 (2006.01); B65H 7/02 (2006.01); B65H 3/52 (2006.01);
U.S. Cl.
CPC ...
B65H 3/0676 (2013.01); B65H 3/0669 (2013.01); B65H 3/5207 (2013.01); B65H 3/5261 (2013.01); B65H 7/02 (2013.01); G03G 15/55 (2013.01); G03G 15/553 (2013.01); G03G 15/6511 (2013.01); B65H 2403/724 (2013.01); B65H 2403/732 (2013.01); B65H 2513/11 (2013.01); B65H 2513/52 (2013.01); B65H 2601/324 (2013.01);
Abstract
The feeding apparatus includes a pick-up roller, a feed roller, a separation roller which forms a separation nip portion with the feed roller, an encoder, and an engine control unit. The engine control unit obtains variation in rotation speed of the separation roller based on a detection result of the encoder, and determines a life condition of the separation roller based on the obtained variation in rotation speed of the separation roller.