The function-separated bilayer photoreceptors with a charge-generation layer which is made of one organic charge-generation material and a charge-transporting layer have narrow spectral response range, so they can not be used in both copiers and laser printers. Thus, a lot of research activities, aimed at the development of high photo-sensitive, and low cost photoreceptors which can be used in both copiers and laser printers, have been carried on recently The latest research of composite photoconductive materials shows that the basic properties of composite photo-conductive materials could be improved and complemented by blending photoconductive materials with various struc-tures, various compositions and various properties. The new kinds of organic photoconductive materials which have high photosensitivity in both visible and near infrared region can be obtained by blending different photoconductive materials together Meanwhile, the fabrication cost can be largely reduced by preparing single layer phot The function-separated bilayer photoreceptors with a charge-generation layer which is made of one organic charge-generation material and a charge-transporting layer have narrow spectral response range, so they can not be used in both copiers and laser printers. Thus, a lot of research activities, aimed at the development of high photo-sensitive, and low cost photoreceptors which can be used in both copiers and laser printers, have been carried on on recently The latest research of composite photoconductive materials shows that the basic properties of composite photo -conductive materials could be improved and complemented by blending photoconductive materials with various struc-tures, various compositions and various properties. The new kinds of organic photoconductive materials which have high photosensitivity in both visible and near infrared regions can be obtained by blending different photoconductive materials together Meanwhile, the fabrication cost can be largely reduced by preparing single layer phot