Xerographic binder plate

Claim 1

A photoconductive layer having improved recycling properties for use in a recycling xerographic process, said layer having a mixture of at least two photoconductive pigments dispersed in a binder, said photoconductive pigments being present in a combined concentration of up to about 15 parts by weight based on 100 parts by weight of a binder, the improvement which comprises one of said photoconductive pigments consisting essentially of cadmium sulfoselenide in a concentration of about 1/2 to 5 parts by weight based on 100 parts by weight of said binder, said photoconductive pigments being present as particles, said mixture of photoconductive pigments being capable of generating and injecting holes and electrons in response to imagewise radiation of not greater than about 5 × 10 14 photons/cm 2 , said binder being selected from the group consisting of a vinylchloride-vinylacetate copolymer sensitized with 2,5-bis(p-N,-dimethylaminophenyl)-1,3,4-oxadiazole; a polycarbonate resin sensitized with 2,4,7-trinitro-9-fluorenone, and polyvinylcarbazole sensitized with 2,4,7-trinitro-9-fluorenone, said binder being capable of transporting holes and electrons during exposure to said imagewise radiation but being incapable of generating holes and electrons sufficient to contribute substantially to formation of an electrostatic image during said imagewise exposure, said binder being capable of generating and transporting holes and electrons during exposure to wavelengths of radiation to which said binder is sensitive at an illumination level of more than about 5 × 10 15 photons/cm 2 at substantially zero electrical field to cause discharging of said photoconductive layer sufficiently to allow recycling of said photoconductive layer in a recycling xerographic process.