| 摘要 |
A backup roller (204) for applying pressure to an inside surface of a photoreceptor web, and a process for making such a backup roller are disclosed. A thin walled tube is extruded from a metallic or polymeric material. After extrusion, the tubing (82) is cut to a desired length and filled with a filler, preferably a urethane foam (84) for providing support for the thin-walled tubing, for the adhesion of journals (80, 86) at each end of the tube and for electrically earthing the photoreceptor web. After the journals are attached at each end of the tubing by the adhesion of the foam, the backup roller can be ground to a precise outer diameter. In a final step, the journals are machined to the proper specifications. <IMAGE> |
