GREENCYCLE 4-Pack Compatible Toner Cartridge Replacement for HP 138X W1380X [with Chip] Toner (Black). Stability and Reliability: The chip has powerful computing and processing capabilities to perform efficiently. It is stable, reliable and functionally depleted to ensure normal operation in a variety of environmental conditions. Page Yield: Up to 4,000 pages per W1380X 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: Laser jet Pro 3001dw 3001fdw , Laser jet Pro MFP 3101fdw 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.