Photosensitive member unit having electrode and image forming apparatus using the same

摘要

A photosensitive member unit includes a photosensitive member, first and second side walls, a rotatable body and a unit electrode. The photosensitive member defines an axis extending in an axial direction, and has first and second end portions in the axial direction. The first side wall rotatably supports the first end portion and the second side wall rotatably supports the second end portion. The rotatable body is rotatably disposed between the first and the second side walls. The rotatable body confronts and contacts the photosensitive member in a prescribed direction perpendicular to the axial direction to be movable in the prescribed direction. The unit electrode is provided at the first side wall and supports the rotatable body, the first side wall supporting the unit electrode to permit the unit electrode to be movable in the prescribed direction in conjunction with movement of the rotatable body in the axial direction.

主权项

1. A photosensitive member unit comprising:
a photosensitive member defining an axis extending in an axial direction and configured to rotate about the axis, the photosensitive member having a first end portion and a second end portion opposite to the first end portion in the axial direction; a first side wall configured to rotatably support the first end portion of the photosensitive member; a second side wall disposed in opposition to the first side wall in the axial direction and configured to rotatably support the second end portion of the photosensitive member; a rotatable body extending in the axial direction and rotatably disposed between the first side wall and the second side wall, the rotatable body being in confrontation with and in contact with the photosensitive member in a prescribed direction perpendicular to the axial direction, the rotatable body being movable in the prescribed direction; a unit electrode provided at the first side wall, the unit electrode supporting and being in contact with the rotatable body for supplying electricity to the rotatable body, the first side wall supporting the unit electrode such that the unit electrode is movable in the prescribed direction in conjunction with movement of the rotatable body in the prescribed direction; and a third side wall disposed at a side opposite to the rotatable body with respect to the first side wall, wherein the unit electrode comprises a protruding portion protruding toward the third side wall and further protruding outward of the third side wall in the axial direction, the protruding portion serving as an electrical interface configured to receive electricity supplied thereto.