Cartridge not recognized as EPSON. A therefore answer the questions of the printer during installation and the first impression. At the first printing of the printer does some strange noise and after 1 minute or 2 waiting it prints. But then print appears no problem. Listen, my printer is an Epson WF-2540 and I have a retreat than a day. I will return to my comment if problem. For now it is "OK to Epson WF-2540".
After a few weeks of use, I confirm that there is no prblème with my WF-2540 printer. Good stuff !!!