A second conveying member is disposed upstream of a first conveying member in a rotation direction of a conveyance shaft in a state in which a fixed end of the second conveying member and a fixed end of the first conveying member overlap each other. In a first position, a second position, and a third position that sequentially distance away from a drive transmission member in an axial direction of the conveyance shaft, a free end of the first conveying member and a free end of the second conveying member sequentially becomes larger as well.