HP 43X (C8543X) Black High Yield Toner Cartridge for HP LaserJet 9000 9040 9050 M9040 M9050 M9059. HP 43X (C8543X) toner cartridges work with: HP LaserJet 9000, 9040, 9050, M9040, M9050, M9059. Original HP Cartridge Yield (approx): 30,000 pages. Original HP toner cartridges produce an average of 71% more usable pages than non-HP cartridges. Ensure that your printing is right the first time and every time with HP printer toner: 43X toner. What’s in the Box: 1 New Original H43X (C8543X) toner cartridge. Color: Black.Storage temperature arange :-20 to 40°C