| 摘要 |
PURPOSE:To obtain a photosensitive body suitable for use in a color copying machine, a semiconductor laser printer, and a high-speed copying machine, and superior in sensitivity, stability, etc., by incorporating a specified trisazo pigment having a specified X-ray diffraction value and a crystal form in an electrostatic charge generating layer as a charge generating material. CONSTITUTION:The amorphous trisazo pigment represented by the formula has diffraction peaks at 2theta=6.8 deg.-7.3 deg., 2theta=16 deg., and 2theta=24.5 deg.-26 deg., in the powder X-ray diffraction pattern. This pigment is contained in the charge generating layer and this layer and a charge transfer layer are laminated on a conductive substrate in this order to obtain an electrophotographic sensitive body, thus permitting the obtained photosensitive body to be suitable for use in a semiconductor laser printer, a color copying machine and a high-speed copying machine, and enhanced in sensitivity, resistance to residual potential, stability at the time of repeated uses, etc. |
