Compatible Epson EPL-5900/6100 Black Toner, which lasts 6,000 pages; that is, its duration is the same as that of an original toner. The compatible toner does not affect the printer warranty and, moreover, it is not of a lower quality than the original ones. This toner does not require manipulation (it includes a chip).
Compatible Epson EPL-5700/5800/5900/6100 Drum. The drum lasts 20,000 pages, approximately the same as that of an original drum. Please remember that the drum is not the same as the toner: the toner is placed above the drum. Neither does the compatible drum damage the printer nor invalidate the warranty.