JPH0197358U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, in which FIG. 1a is a schematic front view showing how the diaphragm is attached to the upper wall of the toner transport box, and FIG. FIG. 2 is an explanatory perspective view of the toner replenishing device; FIG. 3 is a schematic plan view of the toner transport box with the upper wall omitted; FIG. 4 is a vertical cross-sectional front view showing the internal structure of the toner transport box, FIG. 5 is a schematic side view showing the structure of the partition plate, and FIG. 6 is an explanatory diagram showing the positional relationship between the partition plate and the toner transport screw. , FIG. 7 to FIG. 9 show conventional examples, in which FIG. 7 is a longitudinal sectional view of the toner replenishing device, FIG. 8 is an explanatory diagram showing the state of toner detection by the toner empty sensor, and FIG.
The figure is an explanatory diagram showing a state in which toner blocking occurs in the toner empty sensor. 21 is a developer tank, 22 is a toner supply device, 23 is a toner box, 24 is a toner transport box, 2
5 is a toner supply screw, 27 is a toner conveying screw (sensor striking member driving means), 27a is a feeding plate, 29 is a toner empty sensor (toner sensor), 30 is a partition plate, 31 is a diaphragm (sensor striking member) ), 31a is a bent protrusion (sensor striking member driving means), 32 is a fulcrum pin (supporting means), 3
3 is a tension spring (sensor impact member driving means), 3
4 is a hook (sensor striking member driving means), 35 is a toner supply roller, and 36 is a toner.

Claims (1)

[Scope of Claim for Utility Model Registration] A toner transport box comprising a toner supply source that supplies toner to a toner transport box, and a toner transport box that quantitatively replenishes the toner supplied from the toner supply source to a developing tank. is provided with a toner sensor that detects the remaining amount of toner in the toner transport box, and based on the detection signal of this toner sensor, the toner supply source is controlled so that the amount of toner in the toner transport box is maintained at an appropriate value. In the toner replenishing device that controls the operation, the toner transport box includes a sensor striking member that vibrates the toner sensor by colliding with the toner sensor, a means for supporting the sensor striking member, and a means for driving the sensor striking member. What is claimed is: 1. A toner replenishing device comprising: a vibration imparting means comprising a sensor striking member driving means;