Charge director replenishment system and method for a liquid toner developing apparatus
US5231454A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Apr 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0174
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for imaging with liquid developer, the developer including carrier liquid, toner particles and charge director, the system including an electrostatic imaging surface apparatus for forming an electrostatic image on the electrostatic imaging surface, a reservoir for the liquid developer, a developer electrode for developing the electrostatic image with the liquid developer to form a developed image, apparatus for supplying the liquid developer to the electrostatic surface and for removing residual liquid developer from the developer electrode and returning the removed developer to the reservoir, apparatus for transferring the developed image to a substrate and charge director supply apparatus responsive to the charge level of the liquid developer, for supplying charge director at the developer electrode for maintaining the charge level of the liquid developer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.