1. Unique technique with specially designed cartridge clamps to filling through venting holes without damage.
2. Specially for refilling recycle of cartridges. 
3. Can fill all of cartridges for HP/LEXMARK/EPSON/CANON/SAMSUNG/LENOVO.
4. used for ink refilling stores and remanufacturing factories.
5. Filling Quantity Adjusting: Manual/Automatic
5. Color screen display the  working condition