HP 55A Black Standard Capacity Toner 6K pages for HP LaserJet Enterprise M525/P3015/Pro M521 - CE255A HP LaserJet Print Cartridges provide consistent, trouble-free printing, page after page. Office printing runs smoothly with Original HP Supplies, making them the time-saving, cost-effective choice. Iideal for everyday office printing. Enable office efficiency with the trouble-free printing of Original HP supplies. Uniquely formulated HP toner provides the quality and reliability every business wants. Time-saving supplies management makes printing productive and cost-effective. With Original HP cartridges and uniquely formulated HP toner, get consistent print quality throughout the life of the cartridge. When 70% of the printing process relies on the cartridge, choose the one designed specifically for the printer. Suitable for: HP LaserJet P3015 Printer. Page Yield: 6,000 standard pages. Black.