Patent ID: 9063441
Filing Date: 2015-06-23
Classification: G03G

Abstract:
1. An electrophotographic photoconductor, comprising: an electroconductive substrate; a photoconductive layer on the electroconductive substrate; and a protection layer on the photoconductive layer, wherein the protection layer contains two or more metal oxides having different average primary particle diameters, a binder resin, and a charge transporting material, wherein the metal oxides are selected from the group consisting of zinc oxide, titanium oxide, tin oxide, antimony oxide, indium oxide, aluminum oxide, tin-doped indium oxide, tin-doped tin oxide, antimony-doped tin oxide, antimony-doped zirconium oxide, and antimony-doped zinc oxide, and wherein a content of the metal oxides in the protection layer is 50% by mass or higher, and the average primary particle diameters of the metal oxides satisfy all of formulae (I) to (III) below: where d(1) represents the average primary particle diameter (μm) of one metal oxide of the two or more metal oxides contained in the protection layer, and d(2) represents the average primary particle diameter (μm) of another or the other metal oxides of the two or more metal oxides contained in the protection layer.