This BISONTEC toner refill kit contains Black toner refill for Xerox FaxCentre F2121 accessories and easy to use instructions. This is also compatible with Xerox FaxCentre F110 and other printers using 006R01297 cartridge. Replacement chip required (sold separately). Compatibility includes Xerox FaxCentre F2121 refill kit Xerox 006R01297