| 摘要 |
PURPOSE: A developer is provided to suppress the increase of concentration of a developer and to efficiently stir the development in which toner supplement is applied. CONSTITUTION: A developer carrier is configured to carry a developer containing toner and carrier. A magnet is a magnet configured to make the developer carrier carry a developer, a plurality of magnetic poles have at least a first magnetic pole arranged in an internal side of the developer carrier and a second magnetic pole having the same polarity as the polarity of the first magnetic pole while being adjacent to the first magnetic pole in a lower side in a rotational direction of the developer carrier. A supply chamber (23) is a developer carrier and is configured to supply a developer. A recovery chamber (24) is a recovery chamber of which both ends are connected to the supply chamber and is configured to recover a developer used in development by the developer carrier. A first carriage member (25) is provided to the inside of the supply chamber and is configured to carry a developer inside of the supply chamber. A second carriage member (26) is provided to the inside of the recovery chamber and is configured to carry a developer inside of the recovery chamber. A third carriage member (31) is provided to carry a developer within the recovery chamber in a direction opposite to the developer carriage direction within the recovery chamber facing the second carriage member and has a screw type blade around a rotary shaft of the third carriage member. |
