| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of forming a high quality image at a low cost regardless of processing speed. SOLUTION: The image forming device 100 adopting an electrophotographic system performs an image forming process by setting conditions that satisfy the relationship, fdev>Nmax×fch (Nmax is the maximum natural number), and further, the conditions that satisfy the relationship, V/(fdev-Nmax×fch)<0.25, wherein V is a processing speed used during image formation on a photoreceptor drum 3, fch is the frequency of an AC bias applied to an electrifying roller 4, and fdev is the frequency of an AC bias applied to a developing sleeve 7. |
