| 摘要 |
<p>PURPOSE: To smoothly supply toner powder and to form images for by a number of sheets corresponding to filling toner amount by filling a container with the toner powder in a state where the ratio of packing density to saturation bulk density and average penetration and the standard deviation of the penetration are respectively specified. CONSTITUTION: The toner replenishing container for image forming device is filled with the toner powder in a state where the packing density/saturation bulk density is >1.0, the average penetration is >=5.0mm and the standard deviation of the penetration does not exceed 1/5 of the average penetration. It is desirable to set the volume average particle size of the toner powder to 4.0-12.0μm, especially, in the case of one-component type toner powder, it is desirable to set the true specific gravity to 1.55-1.75. As for the structure of the replenishing container, a loosening plate 4 extended in the radial direction and a scraping plate 5 spirally extended are integrally provided in the central area of a rotary shaft 3 rotatably disposed inside the container 1 and in the vicinity of both sides of the shaft 3, respectively, and the plate 4 feeds the toner to the developing unit from a toner discharge port 2 provided in the longitudinal direction of the peripheral surface of the container 1 with the rotation of the shaft 3.</p> |
