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:
Sep. 03, 2019
Filed:
Aug. 03, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Shinji Katagiri, Yokohama, JP;
Tsuguhiro Yoshida, Yokohama, JP;
Shuichi Tetsuno, Kawasaki, JP;
Takayuki Tanaka, Tokyo, JP;
Takahiro Ikeda, Oyama, JP;
Satoru Motohashi, Kashiwa, JP;
Takumi Furukawa, Susono, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 21/00 (2006.01); G03G 15/00 (2006.01); G03G 15/01 (2006.01); G03G 15/02 (2006.01); G03G 15/16 (2006.01);
U.S. Cl.
CPC ...
G03G 21/0064 (2013.01); G03G 15/0121 (2013.01); G03G 15/0126 (2013.01); G03G 15/0131 (2013.01); G03G 15/0189 (2013.01); G03G 15/0233 (2013.01); G03G 15/0808 (2013.01); G03G 15/80 (2013.01); G03G 15/0225 (2013.01); G03G 15/161 (2013.01);
Abstract
A charge roller includes, in a surface thereof, recesses that have sizes that are equivalent to or larger than a volume average particle diameter of a toner accommodated in a developing unit and that are capable of collecting the toner retransferred to a photosensitive drum.