Method and apparatus for removing unexposed marking particles with magnetic carrier particles
US5138388A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1990 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Dec 24, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G17/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Method and apparatus for the production of a hard copy reproduction of image information. After imagewise exposure of one or more uniform depositions of marking particles in one or more respective image frames on a web, the image frames are cleaned by a novel magnetic brush cleaning apparatus which provides a differential cleaning action, whereby the unexposed marking particles are removed while the exposed marking particles are left in place. The resulting transferable images are then transferred from the image frames to a one or more receivers. After transfer, each receiver is transported to a fuser where the transferred image is fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.