Support Printers All-In-Ones WorkForce Series Epson WorkForce Pro WF-4820

I replaced an ink cartridge, but my product shows that the ink is not recognized. What should I do?

  • The ink cartridges may not have been installed using the correct procedure, or they may not be seated correctly. Follow the instructions below to correctly install and reseat the ink cartridges.

    Note: This product is designed to use only genuine Epson-brand ink cartridges. Other brands of ink cartridges and ink supplies are not compatible and, even if described as compatible, may not function properly. Please replace any non-Epson cartridges with Genuine Epson cartridges.

    1. Turn on your product.
      • If an ink cartridge is expended, you see a message on the LCD screen. Note which cartridges need to be replaced and select How to.
      • If you are replacing a cartridge before you see a message on the LCD screen, press the  home button if necessary, and select Maintenance > Ink Cartridge(s) Replacement > Start.
    2. Lift up the scanner unit until it clicks.

      The ink cartridge holder moves to the replacement position. If the ink cartridge holder returns to the home position (far right), repeat steps 1 and 2.

      Do not move the print head by hand or use any kind of tool to remove a cartridge; otherwise, you may damage your product. Do not touch the flat white cable inside the printer.

    3. Remove all the ink cartridges. Squeeze the tab on each cartridge and lift the cartridge straight up to remove it.

      Do not touch the green chip on the cartridge. Install the new cartridge immediately after removing the old one; if you do not, the print head may dry out and be unable to print.

      Note: Make sure the yellow tape is removed from each cartridge. Remove only the yellow tape.

    4. After all the ink cartridges have been removed, reinsert them one by one and press each one down until it clicks into place.

    5. Lower the scanner unit and select Completed on the screen.

      The print head moves to its home position, and the printer starts charging the ink. This takes about 90 seconds. When you see a confirmation message on the screen, ink charging is finished. Select OK.

    If your printer still does not recognize the ink cartridges, please contact Epson Support.

Published:  Jan 11, 2022 Was this helpful?​ Thank you for the feedback!
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