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:
Dec. 24, 2019

Filed:

Aug. 27, 2018
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Tomohiro Shiomi, Abiko, JP;

Teruaki Tsurusaki, Moriya, JP;

Shunichi Koga, Abiko, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 15/09 (2006.01); G03G 21/16 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0812 (2013.01); G03G 21/1676 (2013.01); G03G 2221/1654 (2013.01);
Abstract

A developing device includes a rotatable developing member, a resin-made regulating blade, and a resin-made developing device frame including at least a mounting portion. The regulating blade is fixed, in a state that the regulating blade is flexed, in a region of the mounting portion corresponding to a maximum image region of an image bearing member so that a gap between the rotatable developing member and the regulating blade falls within a predetermined range over a rotational axis direction of the rotatable developing member. The mounting portion is provided with a rib which includes a portion projecting from the mounting portion and extending along a direction parallel to the rotational axis direction of the rotatable developing member and which is formed over an entirety of a region of the mounting portion corresponding to the maximum image region of the image bearing member.


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