| 摘要 |
PURPOSE:To securely prevent a developer from sticking to the surface of a nonmagnetic member by interposing a magnetic shielding member between the nonmagnetic member and a magnetic member. CONSTITUTION:A developer 8 is atrracted by the magnetic attracting force of a magnet member 4 and supported on the surface of a nonmagnetic member 5, and it is conveyed in the rotating direction of the nonmagnetic member 5. The magnet member 4 rotates in the opposite direction to the nonmagnetic member 5, but the developer 8 moves in the opposite direction to the rotating direction of the magnet member 4. The developer 8 supported on the surface of the nonmagnetic member 5 is formed into a developer layer T with prescribed thickness by a doctor blade 9 to reach a development area D. The nonmagnetic member 5 rotates continuously and reaches the position of a shielding member 6. Then, the shielding member 6 weakens the magnetic force by the magnet member 4 greatly and the surface magnetic force of the nonmagnetic member 5 is reduced to make the developer 8 easier to separate from the surface of the member 5. |
