| 摘要 |
The invention provides a conductive roller which can form images of consistent quality and does not cause image failures such as formation of blank spots and a method for inspecting the roller. The conductive roller having a metallic core and at least one rubber elastic layer provided on the outer peripheral surface of the core, the rubber elastic layer being formed from a conductive rubber to which conductivity has been imparted by carbon powder, wherein the conductive roller satisfies the relationship represented by formula (1): <?in-line-formulae description="In-line Formulae" end="lead"?>Zr/Zc>=5 (1), <?in-line-formulae description="In-line Formulae" end="tail"?> wherein Zr (Omega) represents a resistance component calculated from impedance Z (Omega) and phase difference theta, and Zc (Omega) represents a capacitive reactance component, as measured upon application of an AC voltage of 0.2 V at a frequency of 1 Hz.
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