| 摘要 |
PROBLEM TO BE SOLVED: To provide a conductive roller excellent in the preventing effect of vibrational sound, conductivity and contamination-free property. SOLUTION: This conductive roller consists of a cylindrical core metal and conductive rubber layers concentrically laminated around the core metal. The rubber layers consist of at least two layers, in which the inner rubber layer among the layers is made of a foamed layer having 2.0 to 4.0 foaming magnification and >=1.3 open cell degree of foams. |
