SuperInk Compatible for HP Q5949X 49X Toner Cartridges High Yield (1 Black) Replacement with Laserjet 1320 1320n 1320nw 1320t 1320tn 3390 3392 Printer SuperInk Alternative Replacement for OEM HP Q5949X High Yield Toner Cartridge Expected lifetime yield of 6,000 pages. Approx. cartridge yield in accordance with ISO/IEC 19752 (Based on 5% coverage) (Color: Black) Guarantee: One-Year Warranty/Shelf Time: 18M Our toner cartridge bare two exceptional ISO certifications: ISO 9001 for quality assurance and ISO 14001 for environmental assurance Compatibility: HP LaserJet 1320 1320n 1320nw 1320t 1320tn 3390 3392