Compatible XXL Refillable Cartridges For Epson WF 7710, WF 7720, WF 7210, WF-3620, WF-3640, WF-7610, WF-7620, WF-7110 Compatible Models: WF 7710, WF 7720, WF 7210, WF-3620, WF-3640, WF-7610, WF-7620, WF-7110 Printers Clear Easy Fill Cartridges With Our COC Smart Chips? Ink levels will be reset to back to full. 1- Set of XL capacity empty Compatible refillable cartridges Cyan, Yellow, Magenta, Black 4 - Syringes with safety refill tips Step by step color photo instructions. Fill the syringe with ink Remove the filling plug from the cartridge Fill the cartridge using our safety tips No chip re-setter required Important: Due to Epson firmware updates do not mix refillable cartridges with the Epson cartridges. It is recommended to use the refillable cartridges as a set. Our American made " Ultra Pro True Color Ink " prints roll to roll or sheet to sheet with a consistent color match. Our quality control techniques including surface tension, viscosity, pH, conductivity, specific gravity, and color match by spectrophotometer. We test new ink in real-time test modes. Our compatible inks are rigorously tested to meet and exceed the highest customer expectations by means of ISO 24711 and other print performance criteria. LEGAL NOTICE Epson, Brother, Canon, HP, Sawgrass, and other manufacturer brand names and logos are registered trademarks of their respective owners who have no association with or make any endorsement of the products or services provided by inkproducts.com Any use of a brand name or model designation for a non-OEM cartridge or product is made solely for purposes of demonstrating compatibility. Inkproducts.com makes no claim of affiliation, endorsement, or sponsorship of any of its products or services (including this site and all products and services referred to on this site) by any other company or person.