| 摘要 |
PURPOSE:To effectively use a photosensitive body having an induction effect with a small image exposing quantity by carrying out an image exposure simultaneously when electification is carried out, and then, a full surface post exposure with the light of a fixed quantity. CONSTITUTION:The photosensitive body showing the induction effect, that is, the attenuation of a surface potential is not immediately started with the irradiation of the light, but started later, is uniformly electrified to a specific polarity by an electrifier 2. Simultaneously, the image exposure is carried out with the digital optical signal of the fixed light quantity by an image exposing device 3. Then, the full surface post exposure is carried out with the light of the fixed quantity by a full surface pot exposing device 4, in a state where the induction effect of the light irradiation part of the image exposure is progressed, to form an electrostatic latent image, and it is developed by a developing device 5, to form a toner image, Thus, excellent sensitivity with respect to the digital optical signal is obtained, and a sharp image can be formed. |
