Purchasing genuine Xerox black toner cartridges (like this 106R03500) ensures that you get the best quality results from your laser printer and simply cannot be beaten by any alternative products. This original Xerox 106R03500 is guaranteed to work with all printers listed on this page and is also incredibly reliable.With an estimated 2,500 page yield from the Xerox 106R03500 black toner cartridge, there are more economic cartridges available for your printer. However, the genuine Xerox 106R03500 is offered at a lower price than these higher capacity alternates to compensate for this difference.