| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device capable of realizing the facilitation of the maintenance care of a developing device, the facilitation of the replenishment and the exchange of developer and the high reliability of the developing device (shortening of downtime) by prolonging the life of the developer in the developing device. SOLUTION: The excess (fatigue) developer 101' whose storage amount exceeds the specified amount out of the developer 101 stored in a developing container 105 is carried to the excess developer storage part 126a of a developer storage member 125 in which the replenished developer 102 is stored. The member 125 is independently provided with a replenished developer storage part 126b in which the new developer to be replenished to a developing part is stored and the storage part 126a in which the excess developer carried from the developing part is stored respectively, so that the new developer and the old developer are stored without being mixed. |
