摘要 |
<p>Disclosed is an electric conductive roller comprising a rubber having a volume specific resistance of not more than 10<12> OMEGA cm and an electric conductive filler mixed in the rubber, said electric conductive roller satisfying the following formulas (1) and (2): <MATH> wherein R is a resistance of the roller when the electric conductive filler is added, and R0 is a resistance of the roller when no electric conductive filler is added. This electric conductive roller has a low dependence of an electric resistance on a change in applied voltage and environment. <IMAGE></p> |