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. 17, 2017
Filed:
Jun. 08, 2015
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Motonari Ito, Suntou-gun, JP;
Motoki Adachi, Ashigarakami-gun, JP;
Satoshi Sunahara, Hachioji, JP;
Kuniaki Tamagaki, Kawasaki, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01); G03G 21/10 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 21/10 (2013.01); G03G 15/0233 (2013.01); G03G 15/505 (2013.01); G03G 2215/025 (2013.01);
Abstract
When an outer diameter of a charging member is defined as Hc, a ratio of the circumferential velocity of the charging member to the circumferential velocity of an image bearing member is defined as Rc, an outer diameter of a developer bearing member is defined as Hd, and a ratio of the circumferential velocity of the developer bearing member to the circumferential velocity of the image bearing member is defined as Rd, the relationship Hc/Rc≧Hd/Rd is satisfied.