Magnetic brush developing device
US3985099A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1975 |
| Grant date | Oct 12, 1976 |
| Priority date | — |
| Expiry date | May 13, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a magnetic brush developing device, the improvements comprising a plurality of developing rollers consisting of cylindrical stationary magnets each having a developing magnetic pole and disposed in facing relation to the surface of latent image forming member, and cylindrical sleeves rotating around each of said stationary magnets, said plurality of developing rollers being arranged along the surface of said latent image forming member in a manner that the developing magnetic poles have alternately opposite polarities, whereby delivery and receipt of the developing agent between the adjacent developing rollers are effected between the developing magnetic poles of adjacent developing rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.