SPEED Remanufactured Ink Cartridge Replacement for HP 15 and HP 78 (Black,Tri Color, 2-Pack) - SHIPS FAST Black ink tank contains 25ml, page yield up to 500 pages per cartridge @ 5% coverage. Color ink tank contains 36ml, page yield up to 450 pages per cartridge @ 5% coverage. Compatible Printers: Deskjet 3820/920c/940c Officejet 5110/5110xi PSC750xi/950/950vr/950xi. 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.