Welcome to the Okidata B-4200 product page. Here you can find information and pricing for your Okidata 42102801 Genuine Okidata Drum unit. Easy online ordering of your 42103001 Premium Compatible Toner Cartridge, 42102901, 42103001, 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.