IMAGE FORMING DEVICE, IMAGE FORMING METHOD, AND IMAGE FORMING SYSTEM

摘要

Occurrence of the discharge phenomenon is appropriately suppressed. An image forming apparatus includes an image bearing member for bearing a latent image, a developer bearing member for transporting developer to an opposing position opposing the image bearing member by rotating with developer being borne thereon, the developer bearing member having regularly-disposed concave sections formed on a surface thereof, and an alternating voltage applying section for applying to the developer bearing member an alternating voltage that includes a first voltage for moving developer from the developer bearing member toward the image bearing member, and a second voltage for moving developer from the image bearing member toward the developer bearing member in order to develop the latent image using the developer that has been transported to the opposing position, and the cycle period of the alternating voltage is larger than a value obtained by dividing a minimum width of the concave section in a circumferential direction of the developer bearing member by a moving velocity of a surface of the developer bearing member during rotation of the developer bearing member.