| 摘要 |
PURPOSE:To obtain a plural-color non-impact printer which is operated at a high speed and inexpensive by forming a toner image of plural colors one after another on a recording body by using one mirror scanner and an image forming scanning lens, and transferring it to a transfer medium. CONSTITUTION:In order to execute printing by the second color, a photosensitive body 1 is exposed by the second exposing light source 18 for carrying the second information again after a development by the first color has been completed, and brought to an inversion development by the second developing device 19. In such a case, the first and the second images are formed without being superposed in its position. A two-color toner image formed on the drum in this way is transferred simultaneously to a transfer medium under an operation of a transfer use electrifying device, and an image of two colors can be obtained at the same speed as printing of one color. As for the exposing means in such as case, each laser beam emitted from two laser light sources is modulated by the respective laser light modulating devices 7A, 7B, led to a mirror scanner 8 and scanned simultaneously. Thereafter, two laser beam lights are led as the first exposing light source use and the second exposing light source use by a splitter 26. |
