| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device that can prevent on abnormality in image density and a surface staining by setting the toner consumption in accordance with the actual usage situation of the toner at the process of forcibly consuming the toner, and forcibly consuming the toner in accordance with the advance of the toner deterioration. <P>SOLUTION: The developing device provided with a forcible consuming means 13 for forcibly consuming the toner equivalent to the difference between the actual toner consumption and the prescribed toner consumption when the number of pixels used for forming an electrostatic latent image is equal to or below the prescribed toner consumption, is characterized in that, in the process of forcibly consuming the toner, the forcible consumption is corrected by the forcibly consuming means 13 in accordance with the number of sheets printed before the start of replenishing the toner, and then the toner equivalent to the corrected forcible consumption is supplied to a non-image forming area on the latent image carrier. <P>COPYRIGHT: (C)2003,JPO |
