The bulk system provides the perfect third-party ink solutions: Minimizing printing costs Improving printing quality Substantially increasing productivity Reducing environmentally harmful waste Reducing dependency on OEM Cartridges Printing a great amount of graphics without workers 2. The floater is built inside a cartridge which helps you to adjust ink level. High ink level provides high pressure to a printhead. And low ink level provides low pressure to a printhead. A bottle unit is installed on the top of a printer.And each bottle is connected to each cartridge with ink tubing. A locker valve can turn on/off ink supply to cartridges. 1.4 Bottles (2L) (with Base and Foots). Not included ink and chips. If by e-packet, 7-15 days to USA, and 2-4 weeks to other most countries. We will track the item all the time until it is reached to you. We believe that we can produce a positive outcome to any situation to earn your like. The item "Continuous Bulk Ink System CISS For Roland Inkjet Printer 4 Bottles, 4 Cartridge" is in sale since Friday, December 18, 2020. This item is in the category "Business & Industrial\Printing & Graphic Arts\Printing & Graphic Essentials\General Accessories". The seller is "optim-factory-store" and is located in Beijing. This item can be shipped worldwide.