Welcome to the Lexmark X-5070 product page. Here you can find information and pricing for your Lexmark 18C0031 Premium Compatible High-Yield Ink Cartridge. Easy online ordering of your 18C1429 Genuine Lexmark Ink Cartridge, 18C1428, 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.