Abstract: An electrophotography photosensitive plate having an interfacelayer between a substrate and a photosensitive layer. Said interfacelayer comprises the mono- or co-polymer of the unit components represented by the general formula: ##STR1## In said formula R is a hydrogen atom or a methyl group; A is ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 each are lower alkyl, phenyl or benzyl groups, and further R.sub.2 and R.sub.3 may be taken together to form a ring, or ##STR3## wherein B is a nonmetallic atom selected from the group consisting of carbon, nitrogen and sulfur atoms, necessary to form a 5-6 membered heterocycle nucleus with the --N.sup.+ .dbd.C--; X.sup.- is an anion; and Y is a substituted or unsubstituted alkylene group.

Abstract: An electrophotographic photosensitive material comprising a substrate, a photoconductive photosensitive layer, and an intermediate layer interposed between the substrate and the photosensitive layer, said intermediate layer containing a compound which has at least one of hydroxyl and amino groups together with a quaternary ammonium group. The substrate includes a metallic support body and a conductive protection layer applied to form a surface layer on said metallic support body and made of a resin dispersed with carbon particles.

Abstract: A process for preparation of photoconductive powders of a cadmium sulfide type material comprising firing cadmium sulfide type material in an oxygen-containing atmosphere in the presence of a dispersant at a temperature at which the substance to be fired does not melt. The fired substance is water washed in order to remove the dispersant therefrom, if it is water soluble.