Magnetic carrier for electrostatic latent image development
US4600675A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1984 |
| Grant date | Jul 15, 1986 |
| Priority date | — |
| Expiry date | Dec 31, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/10884
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A magnetic carrier is disclosed which is for use in electrographic developing method which effects development of an electrostatic latent image with a magnetic developer at a developing region by rotating a developing sleeve incorporating a magnet therein thereby causing the aforementioned magnetic developer composed of an insulating toner and a magnetic carrier to be transported to the aforementioned developing region. This magnetic carrier is composed preponderantly of fine magnetic powder and binder resin and is possessed of specific properties, i.e. 2000 to 3000 gasses of magentization in a magnetic field of 1000 oersteds, 60 to 250 oersteds of coercive force, and not less than 10.sup.12 .OMEGA..cm of electric resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.