An image forming apparatus including a rotatable developer container, a receiving device which receives the container and is inserted in a direction along a rotational axis of the container and which receives the developer discharged from the container when the container is in a first position, and a regulating member provided on the container. The regulating member prevents, during transportation of the image forming apparatus, the container from moving to the first position from a second position which is upstream of the first position with respect to an inserting direction of the container and in which the developer is not discharged from the container.