An image forming apparatus includes an image bearing member that bears an electrostatic latent image; a developer container containing developer; a developing unit that develops the electrostatic latent image on the image bearing member with the developer; a tubular transport-path forming member that forms a transport path through which the developer is transported from the developer container to the developing unit; a transport member that is disposed inside the transport-path forming member and transports the developer from the developer container to the developing unit; and a control unit that performs control such that, when the transport-path forming member is used for the first time or when the developer container is replaced, an operation to fill the developer into the transport-path forming member is performed by driving the transport member after the image forming operation is started.