This product is either discontinued or we cannot get that from suppliers.
HP Q7551X Toner, Black, Print Laser, Page yield (black and white) 13,000 pages, Operating temperature range 59 to 89°F, Storage temperature range -4 to 104°F, Operating humidity range 10 to 80% RH, Storage humidity 10 to 90% RH.
HP LaserJet toner cartridges deliver consistent performance and professional results.When productivity counts, dependable low-maintenance printing gives you an advantage.