| 摘要 |
PURPOSE:To supply an invariably constant amount of toner by providing a couple of plate bodies which has plural holes bored in the same array pattern and a vibrating means which vibrates one plate body to align plural holes of the both to each other at the bottom part of a toner box. CONSTITUTION:When the switching circuit 24 in a controller 20 operates in response to the detection output of a toner concentration sensor 30, alternating leak magnetic flux is generated at end parts of an iron core 9B. Then, a magnetic body 8 is attracted by the generation of this magnetic flux and a movable plate 6 vibrates as shown by arrows A and B. For the purpose, the toner supplying device is so constituted that holes 5C formed in a fixed plate 5B and holes 6C in the movable plate 6 are aligned with each other during said vibration, and then the toner 4 is discharged through holes and supplied when the holes 5C and 6C coincide with each other by the vibration of the movable plate 6. |
