Continuous Ink Supply System/ continuous ink system/Ink Cartridge R1390 Large ink capacity, Available for all latest Modles, such as Epson 1410 (T0811-T0816),Epson 1400 (T0791-T0796), Epson 1390 (T0851-T0856), Epson CX5000/CX6000 (T0691-T0694), Epson D78 (R0711-T0714), Epson R265 (T0801-T0806), etc.1) The CISS should be placed at the same level with the printer before or after installation. 2) Follow the insatallation procedure of the Installation manual strictly for the best possible effects. 3) The Air filter must be opened and keep the pipe line smoothly white in printing;otherwise it will be proceed poorly that can not print normally. 4) If your printer has been idlled for a long time, please coner the air filter in case the ink evaporate. 5) In case of the ink jet sprayer halts abnormally because of power down,move the nozzle back to its orighinal position,otherwise it is very likely to cause the nozzle to be dry and jammed. 6) Do not switch off the printer frequently when it work,in case that the printer be speeded up ageing. 7)When the is below thewarning level,refill the specified ink in time;otherwise the nozzlebe jammed,very likely!