Compatible with: Epson P6000/P7000/P8000/P9000 Standard, Commercial and Design Edition Printers.

Newly designed ink cartridges for the P-Series printers that operate without a chip. Ink levels remaining will instead be tracked by an internal droplet count done by the printer.

To use these new cartridges, you MUST HAVE the LATEST FIRMWARE UPDATE before inserting them into the printer. See the links below with more information from Epson on this change and a video showing how to update the firmware for your printer