PROBLEM TO BE SOLVED: To easily recognize the replenishing time of powder or developer with respect to a housing container by providing a mechanism with a lever member turned by the flowing resistance of the powder, positioned on the upper surface of the powder and a detection means arranged on the outside of the housing container, set for detecting the approach of the lever member. ;SOLUTION: This mechanism is constituted of a stirring member 11 stirring the powder 8 or liquid, a delivering port 12 delivering the powder 8 or the liquid, the lever member 15 turned by the flowing resistance of the powder 8 or the liquid generated by being stirred by the stirring member 11, positioned on the upper surface of the powder 8 or the liquid and formed of a magnetic body and the detection means 17 detecting the approach of the lever member 15. As for the housing container constituted so that the housed powder 8 or the liquid is supplied to the outside, the approach of the lever member 15 is detected by the detection means 17 on the outside of the housing container. Therefore, since the approach of the lever member 15 is detected by the detection means 17, it is easily recognized that the powder 8 or the liquid in the housing container is reduced to the prescribed quantity.;COPYRIGHT: (C)1997,JPO
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