An image forming apparatus having a sharp neutralizing member which can perform uniform neutralizing effects for a long period of time. The sharp neutralizing member includes sharp projections in which tip portions having the following relationship between a distance P between the tip portions of neighboring projections and the distance D between the tip portion of the projection and an object of neutralization:D≧4.0 mm, and 0.8*D≦P≦1.5*D. Particularly for neutralization of a carrier of toner images, it is possible to achieve uniform neutralization of the medium and to provide a high-quality image.