| 摘要 |
PURPOSE:To speed up release of produced holes and electrons by incorporating a specified electron acceptor in the electrostatic charge generating layer of a laminated type electrophotographic sensitive body having this layer and a charge transfer layer laminated on a conductive substrate. CONSTITUTION:An electron acceptor having 1.1-1.4eV electron affinity contained in an electrostatic charge generating layer captures produced electrons to effectively transfer them through said layer to a conductive substrate, and when early stage charging and exposure are repeated, fluctuation of potentials on the light parts and the dark parts can be reduced without deteriorating sensitivity. Such acceptor is 2,4,7-trinitro-9-fluorenone, etc. As said charge generating substance, azo pigments, etc. are used, and polyvinyl butyral, etc. are used for a binder resin, and a charge transfer layer made of org. hydrazone photoconductor and a binder resin is formed on it. |
