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:
Oct. 15, 2019
Filed:
Nov. 14, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kenji Shindo, Yokohama, JP;
Shinsuke Kobayashi, Yokohama, JP;
Takaaki Akamatsu, Yokohama, JP;
Kohei Okayasu, Mishima, JP;
Takehiko Suzuki, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/169 (2013.01); G03G 15/1675 (2013.01); G03G 15/1695 (2013.01); G03G 15/6529 (2013.01); G03G 15/6558 (2013.01); G03G 15/80 (2013.01);
Abstract
There is provided an image forming apparatus including a configuration in which a voltage of a polarity opposite to a toner charging polarity is applied. In the image forming apparatus, a guide region of a pre-transfer guide is located on a photosensitive drum side with respect to a common tangent line of a photosensitive drum and a development roller to reduce contamination of the pre-transfer guide and prevent contamination of recording materials.