Self-cleaning developer applicator
US3949703A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1971 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Dec 30, 1991 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/101
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A self-cleaning developer applicator system for applying liquid developer to a latent electrostatic image carried by an organic photoconductor supported on a conductive substrate which moves relative to a developer station in which a biasing potential is applied between the substrate and a conductive developer applicator electrode to reduce the effect of the background potential of the latent image while adequately developing desired image areas together with means for cleaning the applicator electrode continuously during operation of the system to remove toner particles which collect thereon under the influence of the biasing potential. In a preferred embodiment the applicator is arranged to flow a film of developer liquid at the speed of movement of the photoconductive surface over a relatively extended area of the image during development thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.