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:
Nov. 17, 2020
Filed:
Aug. 23, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Akinori Miyamoto, Bando, JP;
Kota Mori, Abiko, JP;
Masami Hano, Abiko, JP;
Takashi Kase, Tokyo, JP;
Tadashi Fukuda, Tokyo, JP;
Mikihiro Akasaki, Matsudo, JP;
Takeshi Ohtsu, Toride, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/097 (2006.01); G03G 9/087 (2006.01); G03G 15/16 (2006.01); G03G 21/00 (2006.01); G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
G03G 9/09725 (2013.01); G03G 9/0815 (2013.01); G03G 9/0819 (2013.01); G03G 9/0821 (2013.01); G03G 9/08782 (2013.01); G03G 9/09708 (2013.01); G03G 15/0233 (2013.01); G03G 15/0291 (2013.01); G03G 15/1675 (2013.01); G03G 21/0011 (2013.01);
Abstract
An image forming apparatus in which occurrence of an image failure in association with contamination caused by an external additive, such as silica, adhering to a charging unit is suppressed. The image forming apparatus is configured to charge an image bearing member through use of the charging unit, and uses toner having, on a surface thereof, strontium titanate particles and silica particles having predetermined physical properties.