Electrophotographic photoreceptor and image forming apparatus

An electrophotographic photoreceptor comprising:

• a conductive support;
• and
• a photosensitive layer which is disposed on the conductive support and contains an electric charge generating material and an electric charge transport material,
• wherein a layer configuring a surface of the electrophotographic photoreceptor contains a resin binder configuring the layer, conductive particles A dispersed in the resin binder, and conductive particles B dispersed in the resin binder,
• the conductive particles A have a single peak in a range of 80 nm to 200 nm in a particle size distribution based on the number of particles and volume resistance ρ1 in a range of 101 Ωcm≦ρ1<104 Ωcm,
• the conductive particles B have a single peak in a range of 10 nm to 30 nm in a particle size distribution based on the number of particles and volume resistance ρ2 in a range of 106 Ωcm<ρ2≦109 Ωcm,
• when a particle diameter of the conductive particles A at the peak is set to d1, and a particle diameter of the conductive particles B at the peak is set to d2, Expression (1) described below is satisfied, and
• when the volume resistance of the conductive particles A is set to ρ1, and the volume resistance of the conductive particles B is set to ρ2, Expression (2) described below is satisfied:
• 4×d2≦d1≦20×d2 (1)
• 10×ρ1<ρ2 (2)