| 摘要 |
PURPOSE:To eliminate remarkable irregularity in density in the axial direction of a developing roller without accelerating the deterioration of a developer by providing a screw, a blade, a flow control plate. CONSTITUTION:The screw 9 is structure having plural blades with an angle of axial torsion and rotated as shown by an arrow to carry a powdery development in a developer reservoir 2 as shown by an arrow E and also convey it in a peripheral direction (arrow A), thereby supplying it to the developing roller 4. Further, the flow control plate 7'' is provided with plural fins 7a slantingly to the axis of the developing roller 4 to deflect a developer which is removed by a blade 6 and returns to the developer reservoir 2 as shown by an arrow D. |
