US 11,442,399 B2Granted

Developing cartridge

AssigneeJiangxi Yibo E-Tech Co. Ltd.

InventorsXiaobing Liu, Haifeng Gu, Shiping Ao, Liangliang Hu, Xiaomin Gong

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Abstract

The developing cartridge herein has a housing, a developing roller rotatably supported by it, the developing roller rotating about an axis in a direction, a supply roller rotatably supported by the housing and configured to convey a developer to the developing roller, the supply roller having a supply roller shaft, a driving gear on a driving side of the housing in the direction, and an electrode electrically connected to the developing roller shaft. The electrode has first and second parts, and an intermediate part connecting them. The first part is on an opposite side of the driving side of the housing, the second part is on the driving side, and the opposite side of the driving side and the driving side are opposite ends of the housing in the direction, and the second part is simultaneously in contact with the supply roller shaft and the developing roller shaft.

Claims15

Dependent claims

A developing cartridge, configured to be detachably mounted in an image forming device, comprising:

a housing;
a developing roller rotatably supported by the housing, the developing roller configured to rotate about an axis extending in a first direction, the developing roller having a developing roller shaft;
a supply roller rotatably supported by the housing and configured to convey developer to the developing roller, the supply roller having a supply roller shaft;
a driving gear disposed on a driving side of the housing;
and
an electrode electrically connected to the developing roller shaft and the supply roller shaft, the electrode comprising a first part, a second part, and an intermediate electrical connection part connecting the first part and the second part;
wherein the first part is located on an opposite side of the driving side of the housing, the second part is located on the driving side of the housing, and the opposite side of the driving side and the driving side are opposite ends of the housing in the first direction;
and
wherein the second part is in contact with the supply roller shaft and the developing roller shaft or the supply roller shaft is electrically connected to the developing roller shaft by the second part.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/717,224Filed 11 Apr 2022 · continuation
Priority: CN 202021381604.215 Jul 2020
Published: US 2022/0236688 A128 Jul 2022
Granted: 13 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G03G 21/1652
For connecting the different parts of the apparatus: electrical connection means
G03G 21/1676
Means for handling parts of the apparatus in the apparatus: for the developer unit
G03G 21/1814
Arrangements or disposition of the complete process cartridge or parts thereof: details of parts of process cartridge, e.g. for charging,…
G03G 21/1857
Means for handling the process cartridge in the apparatus body: for transmitting mechanical drive power to the process cartridge, drive…

Family

PCT/CN2021/106467Parent of this continuation · filed 15 Jul 2021
US 2022/0236688 A1Pre-grant publication · published 28 Jul 2022
US 11,442,399 B2This patent

From the US filing history. Foreign family members aren’t listed.

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