An image forming method including forming a latent electrostatic image borne on an image bearing member, developing the latent electrostatic image with a development agent accommodated in a development unit, the development agent containing toner, applying or attaching a protective agent to the surface of the image bearing member by a protective agent supplying device including a foam roller, and supplying particulates having a true spherical form between the surface of the image bearing member and a surface of the foam roller.