| 摘要 |
A paper feed roller 1 is used in a paper feeding unit in an electrophotographic image forming device. The paper feed roller 1 includes a non-foamed elastic body 2 having an embossed surface 21 including crest-like parts 211 and valley-like parts 212. The embossed surface 21 has many dimple parts 213 recessed inward on bottom surfaces of the valley-like parts 212 or on the bottom surfaces and lateral surfaces of the valley-like parts 212, and does not have the many dimple parts 213 on top parts of the crest-like parts 211. A diameter of the dimple parts 213 can be set to be 1 to 100 μm and an arithmetic average height Ra of the embossed surface 21 to be 3 to 50 μm. |
