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.

Date of Patent:
Feb. 27, 2018

Filed:

Sep. 08, 2016
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Akihisa Matsukawa, Fuchu, JP;

Kuniaki Tamagaki, Kawasaki, JP;

Takanori Watanabe, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01); G03G 21/00 (2006.01); G03G 15/23 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0266 (2013.01); G03G 15/235 (2013.01); G03G 21/0005 (2013.01); G03G 21/0064 (2013.01);
Abstract

In an image forming apparatus configured such that developer remaining on an image bearing member without being transferred to a recording material is moved from the image bearing member to a developer bearing member and then recovered in a developer storage portion 35. When forming a second image on a rear surface of the recording material having a surface on which a first image is fixed with a fixing device, a second potential difference between surface potential of the image bearing member after charging with a charging member when forming the second image and potential of the developer bearing member is less than a first potential difference when forming a first image.


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