HP toner ce255x is compatible with the following printers: LaserJet P3010, P3015n, P3015d, P3015dn, P3015x, P3015 LaserJet Enterprise 500 MFP M525dn, M525f, flow MFP M525c LaserJet Pro M521dn, MFP M521dw Package Includes: 3 pack of HP CE255X compatible toner cartridge / 55x black Compatible *Per Cartridge at 5% coverage (ISO/IEC standard) All LD branded remanufactured HP Laserjet P2055DN compatible toner cartridge products are specially engineered to meet the highest standards of quality and reliability. Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.