| 摘要 |
PURPOSE:To make an electrophotographic developing free from unevenness of density possible by loosening toner agitated in a toner tank while shaking it by a wire brush and thereby putting the toner uniformly on a sleeve roller. CONSTITUTION:A sleeve roller 6 having a built-in magroller 7 that forms a magnetic brush is installed rotatably counterclockwise, and an agitating blade 3 is rotatably installed in a toner tank 1. Further, elastic wire brushes 5 are arranged in a toner entrance 4 to the sleeve roller 6 of the toner tank 1. Toner 2 replenished into the toner tank 1 is sent to the toner entrance 4 while being agitated by the agitating blade 3 rotating counterclockwise. When the toner 2 is sent in, the wire brush 5 is bent and shaked by the pressure, and accordingly, the lumps of toner 2 is loosened by the wire brush 5 and toner 2 is stuck on the peripheral face of the sleeve roller 6 by magnetic force of the magroller 7. The quantity of stuck toner is controlled by a doctor blade 8. The toner is stuck on a latent image on the surface of the photosensitive body 9, and a toner image is formed. |
