Electrophotographic photoreceptor, process cartridge, and image forming apparatus

An electrophotographic photoreceptor comprising:

• a conductive support in which (i) a recessed portion having an opening diameter of greater than 400 μm and (ii) a recessed portion having an opening diameter of from 100 μm to 400 μm and a ratio of a depth to an opening diameter of greater than 0.12 are not present on an outer peripheral surface of the conductive support, and a first recessed portion having an opening diameter of from 100 μm to 400 μm and a ratio of a depth to an opening diameter of 0.12 or less is present on the outer peripheral surface of the conductive support;
• an undercoating layer that is provided on the conductive support;
• and
• a photosensitive layer that is provided on the undercoating layer,
• wherein a second recessed portion on which the first recessed portion is reflected is present on an outer peripheral surface of an outermost layer of the electrophotographic photoreceptor, a ratio of a depth to an opening diameter of the second recessed portion is not greater than 0.030.