| 摘要 |
PURPOSE:To prevent one-component magnetic toner from sticking to two- component nonmagnetic toner by arranging a magnetic blade nearly in an L shape nearby the exit of a developing device container which contains the two-component nonmagnetic color toner. CONSTITUTION:An electrostatic charger 2, an exposure slit 3, a developing device 4 which contains the one-component magnetic toner,a developing device 5 which contains the two-component nonmagnetic toner,a transfer discharger 8, and a cleaning device 8 are arranged at the periphery of a photosensitive drum 1. The developing device 5 consists of a developing container 5d, a nonmagnetic developing sleeve 5a, a magnet 5c arranged in this sleeve 5a, and magnetic blade 5 nearly in the L shape which is provided nearby the exit of the container 5d so as to prevent magnetic carriers sticking on the sleeve 5a from flowing out of the container. |
