2x PG540 Black Remanufactured Ink Cartridges Black - 8ml Cartridges will NOT d...2x PG540 Black Remanufactured Ink Cartridges Black - 8ml Cartridges will NOT display ink levels. This is quite normal for remanufactured ink cartridges and will not effect the printing quality or page yield. When you see the low ink warning it DOES NOT...more