Our remanufactured Lexmark inkjet cartridges are remanufactured in a modern factory. We only use virgin (one-time use) cores for remanufacturing. All of the Lexmark inkjet cartridges we sell are performance tested at the time they are remanufactured. They are then filled with pigmented black ink to give you deep, dark blacks and more robust colors, even when printing on ordinary copy paper.