Electrographic development method and apparatus
US7561837B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2006 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Jul 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates generally to processes for electrographic image development. An electrographic development apparatus is provided wherein a film is adjacent a cylindrical toning shell and a mixture of toner and carrier is particles disposed on the cylindrical toning shell in contact with the film. The cylindrical toning shell is closest to the film at a first location, the mixture of toner and carrier particles being movable through the first location with a flow direction. A magnetic core disposed within the cylindrical toning shell offset toward the cylindrical shell such that a magnetic field strength is greater at the second location than the first location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.