Q-Connect Lexmark C540H1CG Toner High Yield Cyan Confounded by spiralling print costs? Install a Q-Connect Lexmark C540 Toner Cartridge (OB02348) for great results at a fraction of the price. This compatible cartridge offers the same great performance and reliability you'd expect from original manufacturer cartridges, but come at a great low price. It's built to exacting Q-Connect specifications that meet or exceed original cartridges for outstanding reliability and results. This item boasts a 2,000 page yield.