| abstract |
A charging member is provided for charging a member to be charged, which exhibits less nonuniformity in resistance, uniform chargeability and excellent processability, which is non-adhesive and thus causes neither adhesion to nor contamination of a photosensitive member, and which causes less residual strain with excellent durabiltiy even in long-term pressure contact, and an electrophotographic apparatus using the charging member. The charging member is composed of a conductive elastomer formed by vulcanizing a rubber composition containing nitrile rubber having a cross-linked polybutadiene structure in its molecule. |