IP Library Granted Patent US 11,221,567
Granted Patent B2
US 11,221,567 · App. 17/077,147 · Granted Jan 11, 2022

Developing cartridge capable of reducing size of image forming apparatus

Inventors: Nao Itabashi (Nagoya, JP); Junichi Yokoi (Nagoya, JP)
Assignee: BROTHER KOGYO KABUSHIKI KAISHA
G03G15/0867G03G15/0863G03G21/1647G03G21/1896
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Quick Facts
Patent No.
US 11,221,567
App. No.
17/077,147
Granted
Jan 11, 2022
Kind
B2
Abstract

A developing cartridge may include: a casing configured to accommodate developer therein, the casing extending in the first direction; a coupling rotatable about a first axis extending in the first direction, the coupling being positioned at one side of the casing in the first direction; a detection gear rotatable about a second axis extending in the first direction, the detection gear being positioned at another side of the casing in the first direction; and a storage medium including an electric contact surface, the electric contact surface being positioned at the one side of the casing in the first direction.

Claims (19)

1. A developing cartridge comprising:

a developing roller;

a casing configured to accommodate developer therein;

an electrode electrically connected to the developing roller;

a memory storing information related to the developing cartridge, the memory having an electrical contact surface; and

a holder holding the memory, the holder being movable relative to both the casing and the electrode.

2. The developing cartridge according to claim 1 ,

wherein the developing cartridge is for use with a drum cartridge including a photosensitive drum.

3. The developing cartridge according to claim 2 ,

wherein the developing cartridge is attached to an image forming apparatus in a state where the developing cartridge is in combination with the drum cartridge.

4. The developing cartridge according to claim 1 ,

wherein the electrode is made of conductive resin.

5. The developing cartridge according to claim 4 ,

wherein the developing roller is rotatable about an axis extending in an axial direction, and

wherein the electrode is positioned at one side of the casing in the axial direction.

6. The developing cartridge according to claim 5 ,

wherein the holder is positioned at another side of the casing in the axial direction.

7. The developing cartridge according to claim 4 ,

wherein the electrode is attached to an outer surface of the casing.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 22, 2020
From: ITABASHI, NAO; YOKOI, JUNICHI
To: BROTHER KOGYO KABUSHIKI KAISHA
Reel/Frame 054137/0244 →
Priority Claims (1)
JP 2015-254201 · Dec 25, 2015 · national
Continuity (6)
Continuation 16867612 · May 6, 2020
Continuation 16593623 · Oct 4, 2019
Continuation 16361519 · Mar 22, 2019
Continuation 16031011 · Jul 10, 2018
Continuation 15280614 · Sep 29, 2016
Related Publication 20210041804A1 · Feb 11, 2021
Cited By (1)
US 12,411,453