DEVELOPING ROLL FOR ELECTROPHOTOGRAPHIC DEVICE AND METHOD FOR MANUFACTURING DEVELOPING ROLL FOR ELECTROPHOTOGRAPHIC DEVICE

摘要

Provided are a developing roll for an electrophotographic device and a method for manufacturing a developing roll for an electrophotographic device, with which fusing of toner and filming of the toner can be suppressed.　A developing roller 10 for an electrophotographic device is equipped with a shaft 12 and an elastic body layer 14 formed on the outer circumference of the shaft 12, wherein the surface of the elastic body layer 14 has a plurality of large protruding parts 16 having a width of 3.0 – 12 μm and a height of 3.0 – 12 μm, and a side surface of the large protruding parts 16 has a plurality of small protruding parts 18 which form recesses and protrusions having a ten-point average roughness Rz of 2.0 – 4.0 μm.