Patent ID: 8038483

Claim:
An image forming apparatus comprising: a first electrode comprising: a spring portion, which has a cylindrically coiled shape, and which extends in an axial direction; and an annular contact portion, which extends from a first side in the axial direction of the spring portion, and which has an elongated shape viewed from the axial direction; a first frame comprising a through hole, which passes through the first frame in the axial direction, and through which a part of the annular contact portion protrudes toward an extension of the first side in the axial direction; and a second frame, which is relatively movable to the first frame along an elongated direction of the annular contact portion at a further extension of the first side in the axial direction, and which comprises a second electrode that is electrically connectable with the annular contact portion, wherein a diameter of the annular contact portion is larger than a diameter of the spring portion, and wherein the first frame comprises a lock portion that locks the annular contact portion to place a center of the annular contact portion on a second side, which is opposite to the first side, in the axial direction from an end of the through hole.