Aoou Remanufactured Ink Cartridge Replacement for Epson 252 T252 252XL for Epson WF-7710 WF-7720 WF-7110 WF-7210 WF-3620 WF-3640 WF-7610 WF-7620 WF-3630 (2 Black 1 Cyan 1 Magenta 1 Yellow)

Compatible with the Following Printers: Epson Expression Home WF-7710 WF-7720 WF-7110 WF-7210 WF-3620 WF-3640 WF-7610 WF-7620 WF-3630 Printer Ink. How to install the ink cartridge?: 1Open the ink cartridge cover. 2Open the package and take the ink cartridge out. 3Please remove the yellow label marked as PULL first. 4Put the color ink cartridges into the color cartridge slots, and put the black ink cartridge into the black ink cartridge slot, make sure they are on the right place. 5After put the ink cartridges well, close the ink cartridge cover. NOTE: 1Please keep the cartridges upside down(with the orange cover up) for some minutes before install. 2Please install the cartridge into the correct printer slot. 3Please press 'OK' or 'Continue' button to go on print, when prompt 'Non-genuine ink cartridges installed' or 'Used or counterfeit cartridges detected'. 4Please wipe the chip with dry tissue and re-install it, when prompt the ''Cartridge cannot be recognized'' or ''Cartridge is damaged'' 5If line or blurry happens, try realigning your printer heads, choose your printer clean option to clean the print head. We suggest you to clean the printer heads every time before you replace the ink cartridge. 6If your printer do not recognize the ink cartridge at the first time, please take it off and install again. 7We have our own production workshop and R & D department, ink cartridges with pass rate over 98%, if your ink cartridges can't be recognized, please feel to contact us. Tips 1 We advise not update the irreversible firmware. 2 It's suggested to keep your printer on if you often use it, as most printers start printhead cleaning automatically when reset, which will waste inks.