Vacuum assisted dispersant reduction system
US5332642A · kind A · utility
30Cited by
15References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1993 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Feb 12, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a device and method for increasing the solids content of an image formed from a liquid developer, absorption material is contacted with a toner dispersant laden image, and the absorbed dispersant is vacuumed out of the absorption material. The absorption material preferably is a conductive cover on a porous roller biased with an electrical charge which is the same as the charge of the toner particles, such that the resulting electric field repels the toner particles from the absorption material so that minimal toner particles are transferred to the absorption material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.