| 摘要 |
PURPOSE:To prevent the deterioration of a latent image, by applying a process for activation using the full-surface exposure in case plural sheets of copy are obtained from the same latent image with use of a photoreceptor comprising a conductor layer, a visible light conductor layer plus a function layer different from those two layers mentioned above. CONSTITUTION:A visible light conductor layer 33 and a function layer 34 are laminated on a conductor layer 32 to form a photoconductor 31. The layer 34 consists of an insulated matter or an ultraviolet light conductor. The electric charge is trapped on both surface of the layer 33 or 34 to form an electrostatic latent image. Thus plural sheets of copied pictures are obtained from the above- mentioned latent image. Figure A shows the process of development in which a part of the charge of the latent image leaks out. Figure B shows the process of transcription in which the electric charge is injected to a non-picture part. In accordance with these processes, the electric charge is induced to the layer 32. Figure C shows the recovery process for the deterioration of the latent image under which the full-surface exposure is carried out with the visible light for instance. The induced electric charge disappears, and the effect of the electric field to the outside is increased. |
