| 摘要 |
PURPOSE:To prevent the deterioration of the picture quality due to an image shift while an increase in the size of a device and cost-up are suppressed by stopping an original surface to be scanned and the surface of a photosensitive body to be exposed and moving an original scanning means and a photosensitive body exposure means in synchronizing with them each other. CONSTITUTION:When a start key is turned on, an original scan unit 32 starts its moving in the direction of an arrow A and begins the optical scan of the original. At this time an endless belt-like photosensitive body 40 is in the recess state. An electrostatic charge/developing unit 44 moves in the direction of an arrow C at the same speed as the unit 44 in synchronizing with the original scan unit 32, whereby an electrostatic coroton 45 electrifies the surface of the endless belt-like photosensitive body 40 in the recess state. After the electrostatic charge, a mirror 46 irradiates the scan light beam to expose the photosensitive body 40. After the exposure processing, a developing part 47 executes the development processing based on an electrostatic latent image. The electrostatic charge/developing unit 44 incorporating the mirror 46 executes the electrification processing, exposure processing and development processing to the prescribed part of the photosensitive body in the recess state due to said unit 44 moving in the direction of the arrow C. |
