| 摘要 |
An automatic toner feeder is provided to inject a corpuscle like toner automatically according to a predetermined weight and prevent the separation of the corpuscle in the injecting process, thereby being easy to inject the toner and providing clean working environment. An automatic toner feeder includes a hopper(110), at least one vibrator(130), a tube(120), a discharging member(140), a transfer conveyor(150), a housing, a load cell, and a control unit. The hopper forms a containing space in the inside by a side wall(111) gradually received toward a lower end from an opened upper end. The transfer conveyor has a transfer screw(152), a driving shaft(154), and a driving unit(156). The control unit detects the weight of a corpuscular substance contained in the hopper and the weight of a corpuscular substance discharged to a discharging opening by receiving a signal detected in the load cell and controls the driving of the transfer conveyor.
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