| 摘要 |
PURPOSE:To offer a small-sized and inexpensive pattern exposing device provided for improving gradation, on an image forming device adopting an elecrophotographic system. CONSTITUTION:A constitution is adopted so that plural micro-light-sources S are arranged in a direction nearly perpendicular to the moving direction of a photosensitive member at equal intervals, a plate pattern P on which plural light transmitting parts and non-light transmitting parts are alternately arranged in the direction where the micro-light-sources S are arranged, is provided on the side of the photosensitive member apart from the micro-light-sources S, and plural slit-like electrostatic latent images are formed on the photosensitive member with light transmitting the light transmitting part of the pattern plate P. |
