Toner cartridges for OEM printers from Xerox deliver brilliant image quality and excellent reliability at a low cost. Compared to the original OEM toner cartridge, you will get better or equal page yield, pay around 25% less and receive a 100% lifetime warranty. This black laser toner cartridge is compatible with ProXpress SL-M3320, SL-M3370, SL-M3820, SL-M3870, SL-M4020 and SL-M4070 printers and has a yield of 5,000 pages.