Genuine OEM Lexmark T642 dtn Toners
Lexmark 640 black toner for the T642dtn comes in standard and high-yield capacities. The standard 64015SA suits lighter printing, while high-yield 64015HA gives you more printing between cartridge changes.
Toner Buzz carries genuine Lexmark toner for the T642dtn, along with fusers and roller parts. For maintenance, 40X2592 is a fuser assembly, while the 40X0100 kit includes a fuser and rollers; choose according to whether you need the fuser alone or those parts together.