| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus, process cartridge and developing device, capable of keeping constant the amount of developing agent in the developing device with a low-cost method without using a complicated developing agent amount detecting means and the like. <P>SOLUTION: By interlocking a developing agent conveying auger 711 supplying the developing agent in a toner cartridge 701 into the developing device 101 and a discharging sleeve 119 for discharging the developing agent in the developing device 101, the supply amount and the discharge amount of the developing agent are controlled, and the amount of developing agent in the developing device 101 is kept constant. <P>COPYRIGHT: (C)2010,JPO&INPIT |
