Image forming apparatus

摘要

An image forming apparatus contains a photoconductor having a support and a photoconductive layer disposed thereon. I(S) at the surface of the photoconductor and I(S) at the interface of the photoconductive layer on the support side are 5.0x10^-3 or less and the sum of I(S)s is 3.0x10^-3 or more. I(S)s are determined according to following Equations 2 and 3 after subjecting a group of data of N samples of height x(t) [mum] of a profile curve at the surface or of one at the interface to discrete Fourier transform according to following Equation 1, the N samples being taken at intervals of Deltat [mum] in a reference line direction. $\begin{array}{cc}X\left(\frac{n}{N.\mathrm{Delta}t}\right)=\sum _{m=0}^{N-1}x\left(m.\mathrm{Delta}t\right)\exp \left(-\mathrm{i2pi}.\frac{n}{N.\mathrm{Delta}t}.m.\mathrm{Delta}t\right)& \mathrm{Equation}1\end{array}$ wherein n and m are each an integer; N is 2^rho, where rho is an integer. $\begin{array}{cc}S\left(\frac{n}{N.\mathrm{Delta}t}\right)=\frac{1}{N}.{X\left(\frac{n}{N.\mathrm{Delta}t}\right)}^2& \mathrm{Equation}2\\ I\left(S\right)=\left(\frac{1}{N}\right)\sum _{n=0}^{N-1}\left\{S\left(\frac{n}{N.\mathrm{Delta}t}\right)\right\}.& \mathrm{Equation}3\end{array}$