| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of always obtaining a high-quality image by preventing image flowing from occurring. SOLUTION: In this image forming device, one-component toner 6 is held on the surface of the developing sleeve (developer carrier) of a developing device 5 so as to develop a latent image on a photoreceptor drum (image carrier) 3. In such a case, by providing a fogging mode for setting such a developing condition that fogging easily occurs and line width is not changed, a mode is automatically or manually shifted from an ordinary mode to the fogging mode in circumstances that the image flowing easily occurs. Since the mode is automatically or manually shifted from the ordinary mode to the fogging mode (mode for setting the developing condition that the fogging easily occurs) in the circumstances that the image flowing easily occurs, the image flowing is prevented from occurring even in the case of using paper containing a large amount of talc under high humidity environment. Even if the image flowing occurs, it is quickly prevented and the high-quality image is always and stably obtained. |
