Genuine OEM Lexmark MX811 DPE Toners
Black toner and fuser maintenance are different supply needs for the Lexmark MX811 DPE. Within the maintenance selection, a fuser on its own is also different from a kit that includes rollers.
Find genuine Lexmark toner, individual fusers and the 40X8420 maintenance kit for the MX811 DPE at Toner Buzz. The kit is Type 00, so confirm the installed fuser type before making that maintenance choice.