R2880 ink system feed CIS system, also for R1900 With special Lid (cartridges house) and special Tip for the Lid You can release the lid and fix back the OEM cartridges house cover in any time. Total with 9 color dampers (with Matte and Photo Black ) No more cartridges need. Printing as much as you like. Patent: M254344, US7097281 B2