| 摘要 |
PROBLEM TO BE SOLVED: To reduce the size of a development device while keeping agitating performance of a developer even when the number of agitation members are set as two, which is the necessary minimum number.SOLUTION: In a developing tank 71, a development roller 70 that carries a developer to rotate, a supply roller 72 for supplying the development roller 70 with the developer while rotating, two agitation members 74,75 for agitating the developer in the developing tank 71 are provided. In an agitation area R surrounded by a plane P1 passing through the rotation axis of the development roller 70 and a plane P2 parallel to the plane P1 and passing through the rotation axis of the supply roller 72, the two agitation members 74,75 are disposed. The rotation direction of the supply roller 72 and the rotation direction of the agitation members 74,75 are the same. |
