IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To obtain an image forming device provided with a structure capable of restricting the occurrences of base soil, density irregularity, and, further, defective image. SOLUTION: On a latent-image carrier (photoreceptor drum) 1 uniformly electrified in advance and whose surface friction coefficient (μ) is set to be 0.1<=μ<=0.4, an electrostatic latent image is formed by optical writing, the electrostatic latent image is rendered visible by bringing a developer carrier (developing roller) 4A carrying developer into contact with the electrostatic latent image, and it is transferred to a transfer medium and the transferred image is fixed, thereby forming an image. In this case, if the linear velocity of the latent-image carrier 1 is V1, the rotation frequency of the developer carrier 4A is f, and the number of the teeth of a gear for driving the developer carrier 4A is Z, the relationship of V1/f.Z<0.7 is set.