Developing roller, developing device, process cartridge, and image forming apparatus
US7925192B2 · kind B2 · utility
6Cited by
45References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2008 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Dec 31, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0928
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing roller includes a developing sleeve and a magnet roller disposed within the developing sleeve to attract developer to an outer surface of the developing sleeve by magnetic force. The outer surface of the developing sleeve has a plurality of recesses of circular or elliptic shape in plan view regularly or irregularly arranged therein so as not to overlap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.