Multilayered photoreceptor using a roughened substrate and method for fabricating same

A multilayered photoreceptor comprising:

• a roughened substrate having no fewer than about 200 peaks and valleys over a 10 mm length with a peak to valley distance of at least about 0.2 .mu.m;
• an undercoat film formed on said substrate, said undercoat film comprising a mixture of a silane and one of an organometallic compound and an organometallic chelate compound, said undercoat film being substantially without a thickening agent;
• a charge generating layer formed over the undercoat film;
• and
• a charge transport layer overlaying said charge generating layer,
• wherein said multilayered photoreceptor is suitable for use in xerographic printers capable of producing print output substantially free of pepper spots and interference-fringe defect that would otherwise be produced due to specular reflection along an interface between the substrate and the undercoat film.

A method of eliminating pepper spots from print output and specular reflection from an interface between a substrate and an undercoat film of a photoreceptor, said method comprising the steps of:

• forming said substrate to have a roughness enabling said substrate to be coated with said undercoat film substantially without a thickening agent, said substrate having no fewer than about 200 peaks and valleys over a 10 mm length with a peak to valley distance of at least about 0.2 .mu.m;
• coating said substrate with said undercoat film;
• and
• forming charge generating and transport layers overlaying the undercoat film,
• wherein said multilayered photoreceptor is suitable for use in xerographic printers capable of producing print output substantially free of interference-fringe defect and pepper spots.