Composite xerographic photoreceptor with injecting contact layer
US4015985A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1975 |
| Grant date | Apr 5, 1977 |
| Priority date | — |
| Expiry date | Apr 9, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/102
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photoreceptor used in xerographic imaging process and normally including a photoconductive layer comprising a mixture of photoconductive particles dispersed throughout the layer with resinous binder material is joined by bonding to a conductive base layer through an intermediate layer which provides a charge carrier injecting interface between the photoconductive particles and the base layer. The charge carrier interface is obtained by forming the intermediate layer from high mass conductive particles dispersed within an insulating resinous material, and causing photoconductive particles in the photoconductor layer to contact conductive particles in the intermediate layer along the bond interface. The conductive particles are selected so as to have available charge carriers at suitable energy levels whereby the photoconductor to conductor particle contact points form individual charge carrier injection contacts which permit certain xerographic imaging processes to be used. The mass and volume loading of conductor particles in the intermediate layer causes such layer to be conductive as a whole whereby the photoconductive layer may be connected to ground or any other potential des…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.