The fuser maintenance kit installation is recommended every 120,000 pages. Maintenance kits include: - Fuser (P/N 40X5345) - Tray 1 ACM feed tires (P/N 40X5451) - Transfer roll (P/N 40X5364)Compatible Printers: Lexmark E 460, Lexmark Optra E 460 Series, Lexmark Optra E 460 DW, Lexmark E 460 DW, Lexmark E 460 DN, Lexmark Optra E 460 DN