| 摘要 |
PURPOSE:To obtain an electrophotographic sensitive body superior in sensitivity to light in the long wavelength region and also in durability, etc., by incorporating a specified bisazo compd. as a carrier generating substance in a photosensitive layer, especially, in a carrier generating layer of a function separated type photosensitive layer. CONSTITUTION:A photosensitive body superior in heat and humidity resistance, etc. is obtained by forming a photosensitive layer obtained by incorporating a compd. as a carrier generating substance 7 together with a carrier transfer substance 6 in one photosensitive layer or especially forming a laminate type photosensitive layer composed of a carrier transfer layer 3 and a carrier generating layer 2 contg. said compd. represented by formula I in which Y1, Y2 are each H, halogen, CN, alkyl, or alkoxy; A is one of groups represented by formulae II- V; Z is an atomic group necessary to form an optionally substd. aromatic C ring or aromatic hetero ring; Q is optionally substd. carbamoyl or sulfamoyl; R1 is H, optionally substd. carbamoyl, COOH, its ester, or CN; A' is optionally substd. aryl; and R2, R3 are each optionally substd. alkyl or aralkyl or aryl. |
