| 摘要 |
PURPOSE:To obtain a small-sized inexpensive printer by using an electrostatic recording body provided with a switching element, which is set to a high conductive state by a high electric field and is kept in this state, and an electric charge transport layer or a photoconductive layer on a conductive supporting body. CONSTITUTION:A switching element layer 3 which is set to a high conductive state by a high electric field and is kept in this state, an electric charge transport layer or a photoconductive layer 2, and a surface protective layer 4 are provided on a conductive supporting body 1. A potential higher than Vth is induced in the switching element layer by a high corona potential as shown in a figure A to set the whole of this layer to a high conductive state. For example, a thermal head 5 is used to apply heat in accordance with a signal as shown in a figure B. The switching element layer 3 is restored to a low conductive state by heating. Next, the switching element layer 3 is electrified again with a surface potential lower than Vth. At this time, only parts of the switching element layer 3 restored to the low conductive state are electrified with a high potential but the potential of the other parts is low to form a latent image. |
