Toner Cartridge for Lexmark X 3550 Black 18 ml, Armor Compatible Ink Cartridge for X3550: Amazon.co.uk: Computers & Accessories
Lexmark X3550 Ink Cartridges
Lexmark X3550 All-in-One Color Inkjet Printer with Optional Wireless Capability, Up to 4800 x 1200 dpi, Up to 24ppm Black/17ppm Color at TigerDirect.com
Compatible Lexmark 18C1523 (#23) Black and 18C1524 (#24) Color Set of 3 Cartridges (2 black and 1 color) for X3530, X3550, X4530, X4550, Z1410 and Z1420 - Walmart.com
Lexmark X3550 All-in-One Color Inkjet Printer with Optional Wireless Capability, Up to 4800 x 1200 dpi, Up to 24ppm Black/17ppm Color at TigerDirect.com