| 摘要 |
PURPOSE:To obtain a clear image without reducing resolution by irradiating an electrified photosensitive body with plural exposing light beams having different light intensity and wavelength, and forming electrostatic latent images having different surface potentials, on the photosensitive body. CONSTITUTION:In an exposing device combining, for instance, a light source, a Neutral Density filter, a band pass filter, and a liquid crystal shutter, plural exposing light beams having different light intensity and wavelength, are produced. Then, the photosensitive body electrified in advance is irradiated to form the electrostatic latent images whose surface potentials are different. When development is carried out, the quantity of a developer sticking according to the potential of the electrostatic latent image, is different. Continuously, an image formed on the photosensitive body is transferred/fixed on a paper, etc. A dot 7 having the sticking of a large amt. of the developer is dark in color (a reflection density is high), and a dot 8 having the sticking of a small amt. of the developer is light in the color (the reflection density is low). A dot 9 does not have the sticking of the developer. In other words, the the gradation of an obtained image can be expressed one dot by one dot. |
