Patent ID: 8718500

Claim:
An image forming apparatus, comprising: an image carrier that carries a visual image; an abutting body that is capable of abutting on the image carrier at a transfer position where the abutting body faces the image carrier, and forming a transfer nip; a transfer part that transfers to a recording sheet that enters the transfer position, the visual image on the image carrier; a rotating cam that is disposed so as to be able to rotate both normally and inversely and has a plurality of convex parts provided at a circumferential edge of the rotating cam and a small-diameter part that rotates on an orbit, the radius of which is smaller than that of the convex parts, a first convex part of the plurality of the convex parts having a different orbit radius than a second convex part of the plurality of convex parts; and a part to be abutted, which is provided to one of the image carrier and the abutting body, and which is brought into abutment with the rotating cam.