| 摘要 |
<p>PURPOSE: To enable an initial friction coefficient to be increased with a film formed over the surface of a roller, also enable its film to be stably formed uniformly in thickness, and allow excess paper dust to be discharged while paper dust is being restrained from being produced. CONSTITUTION: When a first, a second and a third layer are formed in order from the center of rotation in the outer circumferential direction, the first layer is formed out of elastic porous resin material 203, the second layer shall be a impregnable resin coating layer 204 where a porous resin material surface layer is impregnated with resin, and the third layer is formed out of filmy resin material 205.</p> |
