The resetter was delivered very quickly, that's for positive noted. The device worked quite well so far, with 3 of 4 Epson printer cartridges. Although I had considered everything that was in the instructions, the black cartridge lies not reset. Only way I had to order me a new, which meant that I could not print as long. Otherwise, I am happy with it. Let's see wenns again goes to reset, if it works then at the next black cartridge.