Printronic Remanufactured Ink Cartridge Replacement for HP 45 51645A (4 Black) 4 Pack Brand: Printronic Individually factory sealed with Printronic labeling Remanufactured under strict standards One year factory warranty against product defect **PLEASE BE AWARE THAT DUE TO PRINTER PROGRAMMING THE INK LEVEL FOR THIS PARTICULAR CARTRIDGE MIGHT DISPLAY EMPTY ON THE PRINTER HOWEVER THE CARTRIDGE IS FULL**