| 摘要 |
PURPOSE:To eliminate the need for a corona discharger and to improve the reliability of a system and reduce the size by applying a voltage between an outside resistance layer and an inside transparent conductive layer formed across a photosensitive layer. CONSTITUTION:The transparent electrode layer 13, photosensitive layer 14, and resistance layer 15 are vapor-deposited in order on the surface of a transparent base body 12 to form a recording body 11. A voltage applying means 14 applies a voltage -VC between the layers 13 and 15 to charge the surface of the layer 15 electrostatically and uniformly and the recording body 11 rotates in said state as shown by an arrow A. Then an image exposing means 17 facing a developing means 18 applied with a developing bias voltage -Vd performs image exposure to generate photocarriers 21 in the photosensitive layer 14, and the carriers move to the border between the layers 15 and 14 to neutralize surface charges of the layer 15, and consequently a toner image 22 is obtained from latent image charges and transferred by a rubber roller transfer device 19 by charging the recording paper 10 from behind. Therefore, a high-voltage power source is not required, the influence of humidity and coarse particles is not exerted, and the improvement of the reliability and the size reduction are attained.
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