Olivetti black inkjet cartridge for use in Fax-Lab 200, 200P, 210, 210P, 250, 250P, 260, 260P, Jet-Lab 500, OFX 140, 150, 180, 185, 500, 520, 520p, 525, 540, 550, 555, 560, 570, 575, 580 printers. Approximate page yield: 500.