It is monochrome and uses black Samsung ML toner cartridges with a page yield of 1, pages. For how long can I preserve compatible Samsung ML toner cartridges not Samsung ML-2240 Printer before using them? I am unable to print for weeks at times due to frequent travel for work. The shelf life of these toner cartridges is approximately three years. Compatible cartridges also last that long, so choosing them over the genuine brand will also help you save a[…]