| abstract |
The present invention provides a developing roll that is excellent in toner chargeability, toner transportability, and toner filming resistance, has excellent wear resistance, and can provide good image characteristics for a long period of time. A base rubber layer is formed along the outer periphery of a conductive shaft body consisting of a cylindrical sleeve and an end cap that closes both ends thereof, and an intermediate layer is formed on the outer peripheral surface thereof. A developing roll having a surface layer 23 formed on the surface. The surface layer 23 is formed of a composition in which rubber elastic particles having a specific particle diameter are dispersed in a polymer material containing a specific polycarbonate copolymer as an essential component. [Selection] Figure 1 |