the continuous ink supply system [ciss] is a new designed ink supply system to reduce the printing cost as low as 90%. the continuous ink supply system provides significant cost and time savings with the high volume ink user. the continuous ink supply system is an innovative product. all you need to do is to change original ink supply system without refitting the machine. so it can make normal printers whose cartridge needs alternative to become a continuous ink supply printers. the advantages are • easy to refill • environment friendly • no more ink cartridge purchasing. no more cartridge replacement. refillable ink tank allows countless refills. • easy installation. anyone can do it within 5 minutes. • use dye, pigment, or sublimation ink as you wish. • don't require you to "pump the ink" to let it work. • if you run out of the ink, you will only need to buy the refill ink for this system. simply pour the new ink into the tank. • no sponge. no drilled holes.