... continuous ink supply system 1.With chips, sensor 2.High quality 3.Install simply 4.8 colors for Epson printer R1900 Continuous Ink Supply ... sensor, can be used without original cartridge, use for printer in present market; When the chip can not ... continual ink supply system can use for:Printer model: R1900Cartridge model: T0870, T0871, T0872, T0873, T0874, T0877, T0878, T0879 . ink system for R1900/ ...