DEVELOPMENT ROLL FOR ELECTROPHOTOGRAPHY DEVICE

Provided is a development roll for electrophotography devices in which image defects are suppressed and which achieve both maintenance of high electrification characteristics and electricity removaleproperties. A development roll 10 for electrophotography devices, the development roll 10 being provided with a shaft member 12, an elastic substance layer 14 formed on the outer circumference of theshaft member 12, an intermediate layer 16 formed on the outer circumference of the elastic substance layer 14, and a surface layer 18 formed on the outer circumference of the intermediate layer, the volume resistivity of the surface layer 18 being within the range of 1.0*1014 to 1.0*1020Omega cm, and the volume resistivity of the intermediate layer 16 being within the range of 1.0 *107 to 1.0*1013omega cm. 本发明提供一种兼顾高带电性的维持和除电性而抑制图像不良的电子照相设备用显影辊。电子照相设备用显影辊10具备轴体12、在轴体12的外周形成的弹性体层14、在弹性体层14的外周形成的中间层16以及在中间层16的外周形成的表层18，表层18的体积电阻率为1.0×10～1.0×10Ω·cm的范围内，中间层16的体积电阻率为1.0×10～1.0×10Ω·cm的范围内。