Patent ID: 8862037

Claim:
A transfer device comprising: a transfer roller comprising a conductive rotational shaft, the transfer roller being opposed to an external image-carrying body configured to carry a developer image, the transfer roller being configured to transfer onto an image-transferred member the developer image carried by the image-carrying body; and a bearing configured to rotatably support the rotational shaft of the transfer roller, the bearing comprising: a conductive section formed of conductive material, the conductive section being disposed in a position around the rotational shaft of the transfer roller, the conductive section being configured to bear the rotational shaft from an opposite side of the image-carrying body with respect to the rotational shaft and to be supplied with electricity from an external power supply, the conductive section comprising an engaged portion; and an insulated section formed of insulating material, the insulated section being disposed in a position around the rotational shaft, the insulated section being configured to cover the image-carrying body from a side of the image-carrying body, the insulated section comprising an engaging portion configured to engage with the engaged portion of the conductive section, the engaging portion being formed to extend inward in an axis line direction of the rotational shaft and having an engaging pawl for engaging with the engaged portion of the conductive section.