L2400DWE L2400DW L2442DW L2445DW L2447DW L2860DW L2800DW L2860DWE L2835DW L2827DWXL L2620DW L2665DW L2660DW L2627DWE L2627DWXL Tips Shake cartridge gently (back & forth) several timesPull out entire sealing tapeRemove orange protective coverInsert the cartridge into your printer...