The printer needs to load filament to print, and when it is not used for a long time, the filament needs to be stored properly to avoid damage.
You can tap "loading" and "unloading" on the screen to operate respectively. After taping the button, the nozzle is heated until the temperature is high enough to melt the filament. At this time, load filament. Insert the filament into the filament tube until to the nozzle. In order to unload the filament, the filament should be fed in manually until the filament top melt. At this time, press the handle on the side of the filament inlet to loosen the filament clip and quickly pull out the filament.