There is provided an image forming apparatus of an embodiment including a first roller, a second roller, a plurality of biasing members, a control section, and a driving section. The second roller is provided to face the first roller. The plurality of biasing members bias the second roller toward the first roller at different strengths respectively. The control section selects one biasing member of the plurality of biasing members. The driving section selectively drives the biasing member that is selected by the control section and makes the biasing member bias the second roller toward the first roller.