Developing cartridge
EP4726477A3Pending Publication Date: 2026-07-08BROTHER KOGYO KK
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- BROTHER KOGYO KK
- Filing Date
- 2016-08-22
- Publication Date
- 2026-07-08
AI Technical Summary
Technical Problem
Conventional developing cartridges have a large size due to the positioning of components such as the coupling, detection gear, and IC chip on one side of the casing, leading to complex structures in both the cartridge and the image forming apparatus.
Method used
The coupling, detection gear, and IC chip are efficiently arranged on opposite sides of the developing cartridge casing, with the coupling and IC chip on one side and the detection gear on the other, allowing for a more compact design.
Benefits of technology
This arrangement reduces the overall size of the developing cartridge and image forming apparatus, simplifying their structures and improving efficiency.
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Smart Images

Figure IMGAF001_ABST
Abstract
A developing cartridge (1) comprising: a casing (10) configured to accommodate developer therein, the casing (10) extending in the first direction; a coupling (41) rotatable about a first axis (83) extending in the first direction, the coupling (41) being positioned at one side of the casing (10) in the first direction; a detection gear (52) rotatable about a second axis (85) extending in the first direction, the detection gear (52) being positioned at another side of the casing (10) in the first direction; a storage medium (61) including an electric contact surface (611), the electric contact surface (611) being positioned at the one side of the casing (10) in the first direction.
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