The Lexmark laser print cartridges are specifically designed to assure optimal print quality, with crisp, dark output from first print to last. A clean hands design means easy cartridge installation and removal. The Lexmark Optra T print cartridges are designed to work with Optra T printers (T610, T612, T614 and T616) and will not work with other products.Compatible Printers: Unisys UDS 25, Lexmark Optraimage T 610 SX, Unisys UDS 15, Lexmark Optraimage T 614 DX, Lexmark T 610, Lexmark Optra T 614, Lexmark T 614 N SOL, Lexmark Optra T 717 N SOL, Lexmark T 717 N, Lexmark T 612, Lexmark Optra T 614 NL, Lexmark Optra T 614 N, Lexmark Optra T 612 N, Lexmark T 614 DX, Lexmark Optra T 612 SX, Lexmark Optra T 610 N SOL, Lexmark T 710 Series, Lexmark Optra T 717, Lexmark T 610 N SOL, Lexmark Optra T 612 V, Lexmark T 610 N, Unisys UDS 20, Lexmark T 717, Lexmark Optra T 612, Lexmark 4069, Lexmark T 717 N SOL, Lexmark T 616, Lexmark Optra T 610 SX, Lexmark Optra T 610, Lexmark T 612 SX, Lexmark T 610 Series, Lexmark Optraimage T 610 Series, Lexmark T 614, Lexmark Optra T 616 N SOL, Lexmark Optra T 717 N, Lexmark T 616 N, Lexmark T 610 SX, Lexmark Optra T 616 N, Lexmark Optra T 614 DX, Lexmark Optra T 614 S, Lexmark Optra T 614 N SOL, Lexmark Optra T 610 N, Lexmark T 612 N, Lexmark T 614 S, Lexmark T 612 V, Lexmark Optra T 612 N SOL, Unisys UDS 35, Lexmark Optra T 610 Series, Lexmark T 614 NL, Lexmark T 616 N SOL, Lexmark Optra T 616, Lexmark Optra T 710 Series, Lexmark T 612 N SOL, Lexmark T 614 N