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:
Jan. 26, 2021

Filed:

Aug. 07, 2020
Applicant:

Brother Kogyo Kabushiki Kaisha, Nagoya, JP;

Inventors:

Kazuaki Ooka, Nagoya, JP;

Junichi Hashimoto, Toyohashi, JP;

Shota Iriyama, Toyokawa, JP;

Keigo Nakajima, Nagoya, JP;

Kengo Yada, Seki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 21/16 (2006.01); G03G 21/18 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0808 (2013.01); G03G 21/1676 (2013.01); G03G 21/1814 (2013.01); G03G 2215/066 (2013.01);
Abstract

A developing cartridge includes: a casing, a developing roller, a first agitator, a supply roller, and a second agitator. The casing is configured to accommodate toner. The developing roller is rotatable about a developing roller rotation axis extending in a first direction. The first agitator is configured to agitate the toner. The first agitator is rotatable about a first agitator rotation axis extending in the first direction. The supply roller is positioned between the first agitator and the developing roller. The supply roller is rotatable about a supply roller rotation axis extending in the first direction. The second agitator is positioned between the supply roller and the first agitator. The second agitator is rotatable about a second agitator rotation axis extending in the first direction. A rotation locus of the second agitator is positioned outside of a rotation locus of the first agitator.


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