Improved toner formulation with Emulsion Aggregation technology is the main feature of the genuine high capacity black Xerox 106R01221 toner cartridge. Lower running costs and reduced downtime can be achieved with this black Xerox 106R01221 thanks to its high capacity of 18,000 pages. The original Xerox 106R01221 toner is unlike traditional toner because of its tinier and more uniform particles that require lower temperatures to warm-up and no oil to fuse. As a result, lower energy consumption and quicker warm-up times are possible with the Xerox 106R01221 high capacity black toner. Sharper monochrome images and text can be produced using the Xerox 106R01221 toner. The cartridge of the Xerox 106R01221 toner is lighter and smaller, so it is easier to install and provides less waste.