| 摘要 |
PURPOSE:To add the information of the accurate copy magnification of a copy image to the copy image by constituting an eraser with an erasing light source and a liquid crystal shutter. CONSTITUTION:An electrostatic charger 23, an eraser 24, a developing device 10, a transfer charger 19, a separating charger, a cleaning unit 22, etc. are arranged around a photosensitive drum 9. The eraser 24 consists of the erasing light source and the liquid crystal shutter and light transmission control electrodes, namely, segment electrodes are arranged in the transverse direction of the photosensitive drum 9 to constitute the liquid crystal shutter. A light transmission control voltage is applied to individual segment electrodes selectively to control erasing in the transverse direction of the photosensitive drum 9 and printing of copy magnification information. |
