SPEED Remanufactured Ink Cartridge Replacement for HP 950XL and 951XL High Yield Ink Cartridge for use in OfficeJet 8100 8600 8600 Plus(1 Black, 1 Cyan, 1 Magenta, 1 Yellow, 4-Pack) - SHIPS FAST 950BX Black ink tank contains 80ml, page yield up to 2500 pages per cartridge @ 5% coverage. 951CX Color ink tank contains 25ml, page yield up to 1500 pages per cartridge @ 5% coverage. Compatible Printers: OfficeJet8100/8600/8600 Plus. Print Effectiveness: Make printing smoother, natural looking images and fewer granularities, producing best looking prints ever. Inks stop to come out automatically when printing is over. Technology: SPEED ink cartridges are adopted the leading Print Head Cleaning Technology, Print Head Testing Machine Technology, Eco Friendly Technology, Zero-energy Technology. The cartridges underwent an extensive process including, cleaning, testing the chip, ink vacuum refilling, totally pass to 27 production lines. All cartridges reach the standard when they are tested in any severe environment. Warranty: CE, TUV, ROHS, ISO9001, ISO4001 International Quality Certified.