Electrophotographic carrier, developer, developer container, process cartridge, image forming apparatus and image forming method
US7553598B2 · kind B2 · utility
11Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2006 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | May 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1138
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A carrier contains a core; and a cover layer located overlying the core, wherein the cover layer comprises a binder resin, a first particulate material and a second particulate material, wherein the following relationships are satisfied: 1<(D1/h)<10, and 0.001<(D2/h)<1, wherein D1(μm) represents a volume average particle diameter of the first particulate material, D2(μm) represents a volume average particle diameter of the second particulate material, and h (μm) represents a thickness of the cover layer, and wherein the second particulate material has a volume resistivity of not greater than 1.0×1012 Ω·cm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.