Process for developing and transferring magnetic toner images
US4653896A · kind A · utility
2Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1983 |
| Grant date | Mar 31, 1987 |
| Priority date | — |
| Expiry date | Apr 14, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0914
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In electrostatic latent image developing process capable of effecting either positive or negative reproduction a magnetic toner of a high resistivity is controlled to form a magnetic brush having a potential insufficient for development. The toner chain constituting the brush is separated under the influence of an electric field between the developing roll and the image carrier, to produce toner particles having one polarity continuing with the developing roll, and particles of the opposite polarity transferred to the carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.