For BJC 400J/410J/455J/MultiPASS C30/C50/C70/C80 iP1000/iP1500/iP2000,MP110/130 BJC 3000/3010/6000/6100/6200/6500 iP3000,i560 iP4000/iP5000,MP780,i865 BJF850,BJC8000/8200 iP6000d/iP850,BJF860/870 iP8500/i9950 1.Continual Ink Supply System is a environment protective product. Helpful to reduce the high cost of printer consumables. Convenient for using. 2.External tanks and ink cartridges are transparent. Ink cartridges are all without sponge, permanent chips. It has no line on and off, no leak. You do not need to change ink cartridges, every drop of ink can be used totally. 3.External tanks adopt the most advanced technology for the balance device, make the pressure of the ink invariable all the time, so the ink can be supplied continually. Their appearance is beautiful and decent. 4.The filling hole and vent hole are with humanity and colorful design, ink in ink tank will not overflow during using and transportation. 5.Ink we used is first-class quality. It makes the printing effect perfect.