Electrophotographic Photosensitive Member, And Image Forming Apparatus Using Same

An image forming apparatus comprising:

• an electrophotographic photosensitive member;
• a power transmitter for transmitting rotation power to a first end portion of the electrophotographic photosensitive member in axial direction;
• and
• an electrification mechanism for charging with a constant charging ability in the axial direction;
• the electrophotographic photosensitive member comprising a substantially cylindrical body and a photosensitive layer including a latent image forming area formed on an outer circumference of the body;
• wherein in the photosensitive layer, when the body is charged with a constant charging ability in the axial direction, dark electric potential at the latent image forming area gradually becomes larger as proceeding in the axial direction of the body, from the first end portion to a second end portion opposite to the first end portion.