| 摘要 |
PURPOSE:To prevent the defect of image qality by uniformalizing the earing of the toner formed as a thin film on a magnet sleeve to prescribed height. CONSTITUTION:A gap (a) between a magnet sleeve 7 and a blade 8 is set on, for example 0.8-1.5mm., and only the scraping function of the developer on the surface of the sleeve 7 is provided to the blade 8. In the rotating direction of the sleeve 7, a new blade 11 is provided between the blade 8 and a photoreceptor 1, and a gap (b) between said blade 11 and the sleeve 7 is set on, for example, 0.2-0.5mm., whereby the function of making the height of earing of the toner past this blade 11 equal to a gap between the photoreceptor 1 and the sleeve 7 is given. |
