| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device where the capacity of a developer storing part can be automatically decreased and the quantity of developer remaining in the storing part can be decreased. SOLUTION: In the device, a toner concentration sensor 18 detects that a developing device 10 is not replenished with toner, an air pump 30 is operated according to a detected result and air is fed to a toner storing container 20. |
