To provide an image forming device, process cartridge, electrophotographic photoreceptor and conducting member in which even when only a DC voltage is applied on an electrifying member to electrify the objective body, image defects in spots or stripes are prevented.

The image forming device, process cartridge, electrophotographic photoreceptor and conducting member have the following features. The electrophotographic photoreceptor is produced by successively laminating at least a charge producing layer and a charge transfer layer on a conductive supporting body, and the charge transfer layer has 12 to 40 μm film thickness. By applying a DC voltage on the conducting member, the conducting member electrifies the electrophotographic photoreceptor. The conducting member consists of a conductive supporting body and an elastic layer and a surface layer successively formed on the supporting body. The surface layer contains hydrophobic conductive fine particles and hydrophilic conductive fine particles. The amount W1 of the hydrophobic conductive fine particles and the amount W2 of the hydrophilic conductive fine particles satisfy the relation of W1≥W2.