Developing assembly, process cartridge, and image-forming apparatus
US9213258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Aug 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0653
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a developing assembly, the surface of a developer bearing member on which a developer is borne is provided with a first dielectric portion and a second dielectric portion. A regulating portion that regulates the layer thickness of the developer borne on the developer bearing member, the first dielectric portion, and the second dielectric portion each have a charge polarity opposite to the charge polarity of the developer. In a triboelectric series, one of the first dielectric portion and the second dielectric portion is positioned between the developer and the other dielectric portion, and the other dielectric portion is positioned between the one of the dielectric portions and the regulating portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.