| 摘要 |
The device for automatically supplying a toner to a toner cartridge of the present invention comprises: a toner storage container for storing toners to be refilled; an outer container for containing the toner storage container; a toner supplying means for supplying the toner stored in the toner storage container to the toner cartridge; and a toner supply hose for sending the toner to the toner cartridge, wherein the toner supplying means consists of: a balloon, which expands and contracts when air is supplied to or discharged from the inside, so that the toner at the bottom is pushed in towards the cartridge or the toner at the top moves to supplement the bottom; an air pump for supplying air to the balloon; an air pipe for connecting the balloon and the air pump; a control valve; and a controller for operating the control valve, enabling the present invention to print stably by preventing toner shortage. |
