Samsung produce some of the finest black toner cartridges on the market, so the quality of the MLT-D303E should come of no surprise. Offering an estimated 40,000 prints per cartridge, the Samsung 303E can stay firmly installed within your printer for quite some time too.When buying genuine toner cartridges, like the Samsung 303E, you get be assured of unbeatable print quality in any compatible printer. The black toner powder in this MLT-D303E has been designed to fuse at the exact temperature produced by your Samsung laser printer, resulting in quality prints and minimum waste.