| 摘要 |
PURPOSE:To prevent the occurrence of for caused by toner scraped by a magnetic brush. CONSTITUTION:An electronic copying machine is provided with a sleeve 20 which applies photosensitive toner to the surface of a transparent conductive drum 16 and causes a magnetic brush 21 containing photosensitive toner to act on the transparent conductive drum 16 so that the exposure by an exposure means and the remove of unexposed photosensitive toner are carried out The sleeve 20 is arranged in the area II of the transparent conductive drum 16 so that the photosensitive toner 23 removed by the magnetic brush 21 does not fall on the surface of the transparent conductive drum 16. |
