4X,Compatible For Lexmark, T640 T642 T644 X642 X644 X646 Printer Opc Drumfor T X 640 642 644 64435XA 64015HA Toner Cartridge Drum
Lexmark T640 N Monochrome Laser Printer
Lexmark E360dn Pro Duplex Networkable Mono Laser Printer
Lexmark E360d Pro Duplex Mono Laser Printer
Lexmark W840DN A3 Duplex Network Mono Laser Printer
Lexmark MS821dn (A4) Mono Laser Printer (Duplex/Networked) 512MB (2.4 inch) Colour LCD 52ppm 250,000 (MDC)
