Provided is an image forming apparatus including plural image formation units that form an image, an annular belt that holds the image on an outer circumferential surface thereof and transports the image, a driving roller that rotates with being in contact with an inner circumferential surface of the belt and rotates the belt, an adjustment roller that rotates with being in contact with the inner circumferential surface of the belt and adjusts a frictional force generated between the belt and the adjustment roller, a transfer roller that is driven to rotate with being in contact with the outer circumferential surface of the belt and transfers the image on the outer circumferential surface of the belt to a recording medium, and an adjustment unit that adjusts at least one of a rotational speed of the adjustment roller and a normal force of the adjustment roller against the belt.