| 摘要 |
PROBLEM TO BE SOLVED: To provide a conductive roller used for, for example, an electrophotographic copier with a desirable pressure resistance without impairing its conductivity. SOLUTION: This conductive roller 1 comprises a conductive roller base material 3 formed by mixing conductive powder to an urethane resin component which is formed by mixing and dispersing hollow glass 6 and a thermal expansion substance of thermal expansion type microcapsules 7, and a shaft body 2 inserted in the center of the base material 3. |
