Do it Wiser Compatible Toner for Xerox WorkCentre 7845 7855 7525 7835 7556 7830 7535 7530 7545-4 Pack &#9989; Estimated page yield: Black 26,000 pages and colors 15,000 pages (depends on printer and usage) &#9989; Compatible with part numbers: Xerox 006R01513 for black, 006R01516 for cyan, 006R01515 for magenta and 006R01514 for yellow. &#9989; Compatible with printers Xerox WorkCentre 7525 | WorkCentre 7845 | WorkCentre 7835 | WorkCentre 7530 | WorkCentre 7535 | WorkCentre 7545 | WorkCentre 7556 | WorkCentre 7830 | WorkCentre 7845 | WorkCentre 7855 &#9989; Our Do it Wiser Smart toner cartridges are covered by a 1 year warranty against defects &#9989; Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free