Developing cartridge
US12197145B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2024 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Sep 20, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1652
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing cartridge includes: a developing roller rotatable about a rotational axis extending in a first direction; a casing configured to accommodate developer therein; an input gear rotatable about a first axis extending in the first direction, the input gear being positioned at one side of the casing in the first direction; a layer thickness regulating member used to regulate a thickness of a developer layer carried on a surface of the developing roller; and an electrode, the electrode having an electrical contact surface. The developing roller has a developing roller shaft extending in the first direction, a covering layer covering a surface of the developing roller shaft, and an elastic layer rotating synchronously with the developing roller shaft, the electrical contact surface is electrically connected to the layer thickness regulating member, and the covering layer is made of a non-metallic material or insulating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.