Genuine OEM Lexmark T644 Toners
The T644 uses Lexmark 640 standard- and high-yield black toner, plus the extra-high-yield 64415XA cartridge. Choose 64415XA when you want the most printing between cartridge changes among these options.
Toner Buzz carries genuine Lexmark toner for the T644, 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.