GREENCYCLE 2-Pack Compatible Toner Cartridge Replacement for HP 89X CF289X [No Chip] Toner (Black). Page Yield: Up to 10,000 pages per CF289X toner cartridge (based on 5% coverage of Letter size Paper) Actual toner yield varies with usage, graphics printed and environmental conditions. Compatible for HP Printer: Enterprise M507 M507x M507n M507dn Series; Enterprise MFP M528 M528dn M528f; Enterprise Flow MFP M528c M528z M528 Series Printer. Our cartridges are made of quality materials: smart chip, toner powder, smooth OPC & roller and industrial grade packaging. Make your presentations and printouts stand out with GREENCYCLE toner cartridge that produces clear, crisp, bold, and eye-catching text and graphics that keep people awake at your next meeting.