chip model, use on below printer cartridge:
1.EPSON D78/DX4050 ( cartridge is T0711-T0714)
2.EPSON C79/CX3900/CX5900 ( cartridge is T0731-T0734)
3.EPSON STYLUS R260/R380/R580 ( cartridge is T0781-T0786-standard-capacity or T0771-T0776-
high-capacity )
4.EPSON STYLUS R265/R360 ( cartridge is T0801-T0806)
5.EPSON R270/R390/RX590 ( cartridge is T0821-T0826-standard-capacity or T0811-T0816-high-capacity)
6.EPSON STYLUS CX5000/CX6000 ( cartridge is T0691-T0694)
