Developing agent for electrophotography with silica and magnetite additives
US4804609A · kind A · utility
8Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Apr 29, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G13/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing agent for electrophotographic copier contains SiO.sub.2 and/or magnetite in addition to a toner such that talc can be effectively removed from the photoreceptor surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.