Hewlett Packard Q3961A HP Color LJ 2550/ 2820/ 2830/ 2840 Series Smart Print Cartridge Cyan (4 000 Yield) (147/ Pallet) Specifications Man. Part Number: Q3961A Manufacturer: Hewlett Packard Dimensions: 5.50x5.25x14.75 Weight: 2.1 Country of Origin: JP