Patent ID: 9658557
Date: 2017-05-23
CPC Classifications: G03G

Claim:
1. A semiconductive roller comprising: a roller body formed from a semiconductive rubber composition; and an oxide film provided in an outer peripheral surface of the roller body; wherein the semiconductive rubber composition comprises: a rubber component comprising an epichlorohydrin rubber and a diene rubber; an electrically conductive agent comprising a potassium salt of an anion having a fluoro group and a sulfonyl group in its molecule; titanium oxide; and a crosslinking component for crosslinking the rubber component; wherein the epichlorohydrin rubber is present in a proportion of not less than 15 mass % and not greater than 80 mass % in the rubber component; wherein the titanium oxide is titanium oxide having an anatase-form crystal structure, and is present in a proportion of not less than 5 parts by mass and not greater than 50 parts by mass based on 100 parts by mass of the overall rubber component in the semiconductive rubber composition.