F-ink 4PK Empty Refillable Ink Cartridge Replacement for 27XL and 27XXL - 4 Colors (T2791 Black,T2712 Cyan, T2713 Magenta, T2714 Yellow)

1) Empty Refillable Ink Cartridge Replacement for Eps 27XL and 27XXL Ink Cartridge, 4 Colors ( 27XXL Black -- 50ml --< C13T27914022 > , 27XL Cyan, 27XL Magenta, 27XL Yellow ) 2) With Auto Reset Chips / Rechargeable Chips, the chip data can reset again after it totally run out. 3) Compatible Printers: Eps WorkForce WF-3620 WF-3640 WF-7110 WF-7210 WF-7610 WF-7620 WF-7710 WF-7715 WF-7720 WF-3620DWF WF-3640DTWF WF-7110DWF WF-7210DTW WF-7610DWF WF-7620DTWF WF-7710DWF WF-7715DWF WF-7720DTWF 4) How to Reset Chips: When the chip totally run out,and shows"x" on the screen,then take the cartridge out,filling ink about 90% full,and then re-install it back again.Press the red lighting button,then the printer will come to self-cleaning procedure,so you will see the chip works again. Throughout the process,please keep the printer turn on. 5) Can be refilled with Dye ink, pigment ink, Sublimation Ink, eco-solvent ink. 1 set Refillable Ink Cartridge = N sets compatible ink cartridge , 90% cost saving , Reduce 90% pollution,protect the earth together.