| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrification device that can eliminate the need to take costly measures, improve slidability between an electrification roller and a bearing member, suppress generation of an abnormal sound due to sliding, and stabilize electric conduction, a process cartridge using the same, and an image formation apparatus.SOLUTION: An electrification device has: an electrification roller comprising an electrically conductive shaft part at an end; and a bearing member, as a support part supporting the shaft part, which has a plurality of arcuate projection parts formed in a cross section crossing an axial direction within an angle range smaller than 180 degrees in a circumferential direction, the support part being formed inside an end face of the shaft part in the axial direction.SELECTED DRAWING: Figure 1 |
