| 摘要 |
PROBLEM TO BE SOLVED: To provide an image formation device for preventing electric charges from accumulating in a steel reinforcement member for a notched part of a frame in the support structure of a roller to which a bias voltage is applied.SOLUTION: A power feeding member (201) sends a bias voltage from a power supply to an electricity-conductive spring (202). A bearing (203) receives a bias voltage together with an elastic force from the spring. A roller (24) is rotatably held by the bearing and makes contact with a material to be transferred, and, while receiving the bias voltage from the spring through the bearing, is urged by the spring toward the material to be transferred. An insulating frame (205) includes a notched part (205C) having a clearance (GAP) opened inside, and supports the bearing inserted in the clearance. The roller is removable through the clearance. A steel reinforcement member (206) is disposed so as to stride the clearance, reinforcing a strength of the notched part. A contact part (210) of the power feeding member comes in contact with the reinforcement member, and maintains it at the same potential as the spring.SELECTED DRAWING: Figure 4 |
