This genuine KXFA83X is a brand new product that came straight to us from Panasonic and is guaranteed to give you the very best print quality available. Containing a black toner powder formulated to give smooth prints with sharp line and a variety of different tones, the original Panasonic KXFA83X is astounding.You can expect to receive an estimated 2,500 prints from each of these Panasonic KXFA83X mono laser toner cartridges in the Panasonic KX-FL541 and all other compatible printers. A full list of all black and white laser printers that can benefit from the Panasonic KXFA83X can be found on this page.