| abstract |
(57) [Summary] [PROBLEMS] To prevent ozone deterioration of the roll surface, suppress the generation of a high resistance layer due to an oxide film, reduce the voltage fluctuation of electric resistance after continuous energization, and reduce photoconductor contamination. To prevent. SOLUTION: A rubber component consisting of epichlorohydrin rubber alone or a rubber mixture containing epichlorohydrin rubber and acrylonitrile butadiene rubber is used, An antioxidant is added in an amount of 3 parts by weight or more and 7 parts by weight or less with respect to 100 parts by weight of the rubber component, and hydrotalcite as an acid acceptor is 1% by weight based on the weight of the epichlorohydrin rubber. The conductive composition is obtained by molding the rubber composition blended at a ratio of 5% by weight or less into a roll. |