A transfer device is for transferring a toner image formed on the surface of a photosensitive drum to a copying paper. The transfer device comprises a rotatable transfer roller facing the drum and pressing the copying paper to the surface of the drum. The transfer roller has elasticity to press elastically the copying paper to the surface of the drum thereby contacting with wider area, and includes a core provided with an outer circumferential surface, an electrically conductive layer provided on the outer circumferential surface of the core, and a great number of electrically conductive furs projected from the outer circumferential surface of the electrically conductive layer.