Cleaning of corona electrodes
US3953772A · kind A · utility
7Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Mar 25, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0291
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Corona electrodes in electrostatic copying machines take the form of a fine gauge wires, and when subjected to toner an atmosphere with a high density of particle dispersion, can become covered with a deposit which impairs their effectiveness. Cleaning of such a wire is situ without danger of injury thereto is effected by periodically inducing vibrations in the wire, either by controlled mechanical plucking, or by electromagnetically or electrostatically inducing vibrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.