Developing roller and developing apparatus and image forming apparatus using the same
US9158227B1 · kind B1 · utility
2Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2015 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Apr 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0818
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure relates to a developing roller having a conductive support base, a surface of which is covered with a resin layer, wherein the resin layer contains conductive fine particles and soluble nylon serving as a binder resin, and the resin layer surface has a surface roughness Ra of at least 0.4 μm, a waviness curve cycle of 50 to 400 μm, and a waviness curve height of 2 to 10 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.