2x Refilled 303 Black Ink Cartridge For HP TANGO Printer, T6N02AE
P/N T6N02AE. Simply ignore the low ink warning and continue printing. HP TANGO Printer. HP TANGO X Printers. A REAL 303XL black should have a sponge visible in the lower holes if you peal off the top sticker and weigh a min 34g.