Grounding device for moving photoconductor web
US4402593A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Dec 31, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R4/64
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improvement in an electrophotographic copying machine having a movable photoconductor web rotatably mounted on at least a pair of rollers, the web having an insulative support layer, an electrically conductive layer disposed on the support layer, and a photoconductive layer disposed on the electrically conductive layer. The improvement comprises a stationary contact electrically connectable to a fixed electrical potential and slidably in contact with the electrically conductive layer, the stationary contact consisting of a grounding brush having a multiplicity of fibers, each of said fibers comprising a nylon 6 filamentary polymer substrate having finely divided, electrically conductive particles of carbon black suffused through the surface of the filamentary polymer substrate, the electrically conductive particles being present inside the filamentary polymer substrate as a uniformly dispersed phase independent of the phase of the filamentary polymer substrate in an annular region located at the periphery of the filamentary polymer substrate and extending inwardly along the length thereof, the electrically conductive particles being present inside the filamentary polymer substra…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.