Check the amount of powder in the printer and hopper before printing. If there is not enough powder in the printer hopper, the printing cannot be completed.

Note:
1.The total amount of powder in the cartridge should be greater than the amount recommended for slicing files. You need to pre-install at least 7 liters of powder, otherwise the printer will warn you.
2.The RMS220 hopper can hold about 31.5 litres of powder, with each hopper holding about 8 litres of powder. A total of about 40 litres of powder can be held.
Do not mix different materials in the hopper. Raise3D recommends using the same material for each Raise3D SLS printer. If you want to switch between different powders, use another type of powder after thoroughly cleaning the powder in the hopper.