Method of toning an electrostatic image using a rotatable magnetic core brush
US5640656A · kind A · utility
7Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1992 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Nov 4, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus has a magnetic brush toning station for applying toner to an electrostatic image. The brush includes a rotatable magnetic core positioned inside a non-magnetic sleeve. To facilitate the removal of developer from the sleeve after it has toned an electrostatic image, a skive located against the sleeve downstream of the toning position has a roughened surface upon which the developer rolls or tumbles to move away from the sleeve and ultimately fall into a mixing sump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.