Numerical Simulation of Corona Devieces in Electrophotography

Abstract

A new numerical method which analyzes the electric discharge process of wide variety of corona devices in electrophotography is proposed. The method predicts the spatial distribution of the time dependent behavior of both positive and negative ions, and charging process of photoconductors, including their rotational and conducting effects. Furthermore, in order to reduce the computational amomt of AC corona discharge anayses, an improvement for the numerical method is shown.
The analyses of charging process using a typical scorotron charger, and of discharge process using an AC applied corotron device are carried out, taken account of the rotation of photoconductor. The numerical results show the good agreement with the experimental results.