Characterization of Photoreceptors in Electrophotography

Abstract

Characteristics of photoreceptors in electrophotography, dark discharge, photo-induced discharge, and residual voltage, were reviewed on the basis of depletion discharge, emission-limited discharge, and space charge trapped in deep localized states, respectively. The characteristics of the photoreceptors were governed by their transport properties such as photocarrier generation efficiency, drift mobility, deep trapping lifetime, and localized-state distribution. Time-of-flight technique was reviewed for the characterization of the transport properties.