DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

To provide a developing device that, compared with a configuration in which the other end of a duct part opening at one end above a holding body opens above a supply unit, reduces discharge of developer from one end of the duct part, and an image forming apparatus.SOLUTION: A developing device comprises: a holding body that holds developer; a stirring unit that stirs the developer; a supply unit that supplies the developer flowing in from the stirring unit to the holding body; a filling part that is provided above the stirring unit and is filled with the developer; a closing part that closes a lower part of the filling part, and when it is removed, allows the developer to fall from the filling part to the stirring unit; and a duct part that connects a space inside the filling part and a space above the holding body with each other.SELECTED DRAWING: Figure 9 【課題】保持体の上方で一端が開口するダクト部の他端が供給部の上方で開口している構成と比して、ダクト部の一端から現像剤が排出されるのを抑制した現像装置及び画像形成装置を提供する。【解決手段】現像装置は、現像剤を保持する保持体と、現像剤を撹拌する撹拌部と、撹拌部から流入した現像剤を保持体に供給する供給部と、撹拌部の上方に設けられ、現像剤が充填されている充填部と、充填部の下部を塞ぐ塞ぎ部であって、除去されると充填部から撹拌部へ現像剤が落下する塞ぎ部と、充填部内の空間と保持体の上方とを繋いでいるダクト部と、を備える。【選択図】図９