An image forming apparatus is provided to transfer a maximum amount of developer to a transfer member even when there remains little developer in a developer tank. A developer is stored in a developer tank(71). A stirring member(73) rotates in the developer tank. A transfer member(75) is provided at one side in the developer tank and transfers a stirred developer toward a developer. The transfer member includes a wall(78) formed against a rotational direction of the stirring member in order to prevent the developer introduced to the transfer member from being released. The wall is continuously provided along a transfer direction of the transfer member, extends from one side of the developer tank, is provided up to a point perpendicular to the bottom surface, and formed along an outer circumference of the transfer member.
