Patent ID: 8488995

Claim:
An image forming apparatus comprising: a photosensitive member configured to have a latent image formed thereon by exposure after the photosensitive member has been electrostatically charged; an exposure device including a plurality of light emitting elements aligned in a longitudinal direction of the photosensitive member; a development device configured to develop a latent image on the photosensitive member with a developer and simultaneously recover the developer remaining on the photosensitive member; and a transfer device configured to transfer a developer image developed by the development device to a member to be transferred the image, wherein an absolute value of an average charge amount of the developer is between 50 μC/g and 90 μC/g after the developer image has been formed on the photosensitive member under an environment of 27° C./70% RH, wherein a contact angle of the photosensitive member with respect to pure water is not less than 90° and not more than 150°, and wherein when a microstructure is formed on a surface of the photosensitive member and a surface shape of the microstructure is subjected to a Fourier transformation, a value of a length converted from a frequency peak value corresponding to a concave portion of the microstructure is denoted by Hy, a value of a length converted from the frequency peak value corresponding to a convex portion of the microstructure is denoted by Hx, and Hy>Hx is satisfied and Hy is not more than an average particle diameter of the developer.