An image forming apparatus includes a heating rotatable member for heating a toner image on a recording material in a heating nip; a pressing rotatable member for forming the heating nip in contact with the heating rotatable member; a first external heating member, contacted to an outer peripheral surface of the heating rotatable member having passed through the heating nip, for heating the outer peripheral surface, wherein the first external heating member includes a parting layer at a surface where the first external heating member is contacted to the outer peripheral surface; and a second external heating member for heating the outer peripheral surface heated by the first external heating member, wherein the second external heating member includes a parting layer containing an electroconductive agent at a surface where the second external heating member is contacted to the outer peripheral surface. A contact angle of the parting layer of the first external heating member with respect to water is larger than that of the parting layer of the second external heating member, and a surface resistance of the second external heating member is lower than that of the first external heating member.