I bought this lot of generic cartridges for EPSON settle on a WF 2530 WF purchased from Amazon shortly auparavant.Ça absolutely not work! I'm sure I removed the little piece of plastic orange as advised Paris4ever. Las! my black cartridge is not recognized (message displayed), and I find myself unable to print any documents. The printer stubbornly refuses to work with these cartridges. The question is: did it come to the Silver Trade cartridges or EPSON products makes its impossible to work with the generic. In any case, the information "consistent" that appears on the page for the cartridges is deceptive.