Welcome to the Gestetner CP-6340D product page. Here you can find information and pricing for your Gestetner 893516 (DX4640L) Genuine Gestetner Masters. Easy online ordering of your 893510 (Type DX4640) Genuine Gestetner Ink Cartridge, Box of 6, Black, GES893510, GES893516, 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.