Patent ID: 9523930
Filing Date: 2016-12-20
CPC Classification: G03G

Claim Text:
1. A photoconductor, comprising: an electroconductive substrate; an intermediate layer; and a photosensitive layer, wherein the intermediate layer is formed by spray coating and comprises a metal oxide and a binder resin, and has a WRa (LLH) less than 0.12 μm and WRa (LHH) of from 0.03 to 0.2 μm in a curve obtained by: (I) forming one-dimensional data array by measuring a concave-convex form of the surface of the intermediate layer by a surface roughness and profile measurer; (II) subjecting the one-dimensional data array to wavelet transformation by a multi-resolution analysis (MRA- (III) thinning the one-dimensional data array of the lowest frequency component HLL so that a number of data array is reduced to 1/10 to 1/100 to prepare a thinned one-dimensional data array; (IV) subjecting the thinned one-dimensional data array to wavelet transformation by a multi-resolution analysis (MRA- (V) linking logarithms of eleven arithmetic mean roughnesses of from WRa (LLL) to WRa (HHH) excluding WRa (HLL) of the frequency components obtained in (II) and (IV), wherein the arithmetic mean roughnesses (Ra) of the frequency components are defined in JIS-B0601:2001 as follows: WRa (HLL): Ra in a bandwidth having a cycle length of convexoconcave of from 24 μm to 99 μm, wherein the metal oxide is a titanium oxide, wherein the metal oxide is a mixture comprising two metal oxides T wherein the titanium oxide comprises a rutile titanium oxide and an anatase titanium oxide, and wherein the photosensitive layer includes a metal-free phthalocyanine and an azo pigment as a charge generation material.