| 摘要 |
PURPOSE:To respectively sharply develop two kinds of latent images by forming a photoconductive layer consisting of resins of the components which have similar sensitivity to two pieces of light information but are different from each other on a photosensitive body. CONSTITUTION:The photoconductive layer consisting of the resins of the components which have the sensitivity to the 1st light information and the 2nd light information and are different from each other is formed on the photosensitive body. A two-color electrophotograph is constituted by a stage for making primary electrostatic charge on such photosensitive body, stage for making the secondary electrostatic charge of the polarity reverse from the polarity of the primary charge while exposing the 1st information thereto, stage for exposing the 2nd information and forming an electrostatic latent image, stage for exposing the 2nd information and making the electrostatic latent image, stage for visualizing the 2nd latent image, stage for exposing the entire surface of the photosensitive body forming the electrostatic latent image of the 1st light information and stage for visualizing the same. The photosensitive body, therefore, has the similar sensitivity to two kinds of the electrostatic latent images and permits sharp development of the image. |
