Welcome to the Lexmark X-5450 product page. Here you can find information and pricing for your Lexmark 18C0031 Genuine Lexmark High-Yield Ink Cartridge. Easy online ordering of your 18C0535 (34; 35) Genuine Lexmark High-Yield Ink Cartridge, 18C0534, 18C0035, 18C0034, 18C0032, can be completed from this page. Tonerprice.com backs all of our cartridges with our exclusive warranty. As always, we provide free ground shipping on orders over $75 within the contiguous United States from 5 warehouses nationwide.