| 摘要 |
PURPOSE:To smoothly agitate a developer by providing the titled device with a doctor fixed on an unmoving member so as to be opposed to a developing roller and a separator for guiding the developer scratched by the doctor to a bucket wheel or a developing vessel. CONSTITUTION:A doctor 6 is arranged on an approximately intermediate place between magnets M2 and M3 in the direction of the upper right of a developing roller 2 so as to be opposed to a rotary sleeve 201 with a prescribed interval. A separator 7 is arranged on an upper space from the developing roller 2 to a bucket wheel 3 so as to close to the doctor 6. Residual tonor once separated between magnets M5 and M4 is pushed to the part of the bucket wheel 3 and mixed with fresh tonors newly supplied by the bucket tonor 3 and then the mixed tonor T is dropped on a developing vessel 4 through the separator 7. Consequently the used and fresh developers are smoothly agitated. |
