When using genuine Epson cartridges and you decide to change over to compatibles, then it may be necessary to change all of the cartridges, as newer Epson printers may not work with a mixture of originals and compatibles. 

• Remove the cartridges from the printer.

• Turn off by the on/off switch and then unplug at the mains supply for at least 2 minutes. It is important to remove the power lead and not just switch off at the on/off switch. This is because printers can carry a memory of the last cartridge and removing the power supply resets the memory.

• After 2 minutes, plug the printer back into the mains supply and switch on by the on/off switch.

• WAIT for the printer to tell you to insert cartridges. 

• Insert a complete set of compatible cartridges making sure you remove any transport wedges and tabs. Be patient as this can take a few minutes for the cartridges to fully load.  (Do NOT press any buttons during this process!)

• If you get the ‘Non-Genuine Ink Detected’ message, you should select the option that tells the printer that you know this and carefully follow the instructions.

Ensure you haven't already accepted any updates from Epson as the update they have released can prevent the use of compatible ink cartridges and is irreversible.