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:
Jan. 12, 2021
Filed:
Mar. 19, 2019
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Shota Shinoya, Nisshin, JP;
Junichi Hashimoto, Toyohashi, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
A developing cartridge including: a housing capable of accommodating therein toner; a developing roller rotatable about a first axis extending in an axial direction; a supply roller rotatable about a second axis extending in the axial direction; a coupling rotatable about a third axis extending in the axial direction; a developing roller gear rotatable about the first axis together with the developing roller; a supply roller gear rotatable about the second axis together with the supply roller; a large-diameter gear rotatable about the third axis together with the coupling and meshing with the developing roller gear; a small-diameter gear rotatable about the third axis together with the coupling and having a diameter smaller than a diameter of the large-diameter gear, and an idle gear rotatable about a fourth axis extending in the axial direction and meshing with the supply roller gear and the small-diameter gear.