Electrophotographic developer
US5514509A · kind A · utility
4Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1992 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Oct 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1137
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic developer includes a toner and a carrier, in which the carrier is provided on the surface of a core material thereof with a resin coating layer. The coating layer is made of cured body of a methyl silicone resin containing not less than 70% by weight of T-units and a methylated melamine resin having a molecular weight of not less than 700. This developer is not lowered in flowability, generates no spent particles and presents stable electric charging characteristics. Accordingly, the developer of the present invention is suitably used where a toner is used containing no electric charge controlling agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.