Photoreceptor construction.

摘要

Thin photoconductive insulator layers are desirably used because of the reduced amount of materials necessary and their enhanced ability for light transmissivity. However, the thin construction tends to reduce the amount of charge that such a photoconductive layer can support. The use of a combined porous (14) and non-porous (18) barrier/charge transport layer below said photoconductive insulator layer (20) enables higher levels of charging in a photoconductive construction.