Electrophotographic belt and electrophotographic image forming apparatus

An electrophotographic belt having an endless shape, the electrophotographic belt comprising:

• a base layer having an endless shape;
• and
• a conductive layer in contact with the base layer, wherein
• the base layer comprises a crystalline polyester,
• the conductive layer comprises a crosslinked polyester urethane,
• the crosslinked polyester urethane has a triazine ring in a molecule, and
• when a length in a width direction orthogonal to a circumferential direction of the electrophotographic belt is W, and a region of W/4 from a midpoint in the width direction toward both ends in the width direction is a central region,
• when eight observation regions of a square having a side length of 2.5 mm are placed in the circumferential direction of the electrophotographic belt in the central region of an outer surface of the conductive layer opposite to a surface facing the base layer such that one side of the square is parallel to the width direction, at least six of the eight observation regions satisfy conditions:
• when the observation region is divided equally by four straight lines parallel to one side of the observation region and four straight lines orthogonal to the straight lines, at 16 intersection points of these straight lines, a coefficient of variation of the nanoindentation hardness measured under an environment at a temperature of 25° C. is not more than 0.25.