Method of developing electrostatic image with magnetic brush ear promoter
US4436803A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1982 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | Mar 23, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G13/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a method of developing an electrostatic image by bringing an electrostatic image-carrying surface of a substrate into sliding contact with a magnetic brush of a developer formed on a developer-feeding sleeve having a magnet arranged in the interior thereof, wherein the magnetic brush is formed from an earing-promoting component comprising particles of a dispersion of a powder of a magnetic material in a resin, which have a relatively large diameter of 70 to 300 microns, and a developer component comprising particles of a dispersion of a powder of a magnetic material in a binder medium, which have a relatively small diameter of 5 to 50 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.