Development roll for electrophotography device
Abstract:
Provided is a development roll for electrophotography devices in which image defects are suppressed and which achieve both maintenance of high charging properties and discharging properties. The development roll is provided with a shaft member, an elastic substance layer formed on the outer circumference of the shaft member, an intermediate layer formed on the outer circumference of the elastic substance layer, and a surface layer formed on the outer circumference of the intermediate layer. The volume resistivity of the surface layer 18 is within the range of 1.0×1014 to 1.0×1020 Ω·cm, and the volume resistivity of the intermediate layer 16 is within the range of 1.0×107 to 1.0×1013 Ω·cm.
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