| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming device with which stable developer concentration control and image density control are performed even when environmental mismatch is generated. <P>SOLUTION: The image forming device has a maximum image density control priority mode in which maximum image density control is executed in preference to toner supply control when an environmental detection result by an environmental detection means changes more than a predetermined value or developer in a developing device is renewed. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
