| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductive roller that has good semiconductivity as a charging roller and developing roller, includes an oxide film having an excellent property as a protective film, and suppresses the occurrence of an image defect of white streaks associated with tackiness on an image in a storage test especially in a high-temperature and high-humidity environment.SOLUTION: A semiconductive roller 1 is composed of a semiconductive rubber composition obtained by blending a base polymer that is a mixture of epichlorohydrin rubber E and diene rubber D in a mass proportion of E/D=50/50-80/20 with a triazine crosslinking agent and sulfur crosslinking agent as crosslinking components to crosslink the base polymer, and has an oxide film 5 formed by ultraviolet irradiation on the outer peripheral surface 4. |
