EPSON V3.11 ARC Separate Chip use for Cartridge Number as below:
T0711-T0714,T0731-T0734,T0691-T0694,T0731/T0731-T0734,T0771-T0776,T0781-T0786
T0821-T0826,T0851-T0856,T0870-T0879 and so on new printers.
EPSON V3.11 Combo Chip (Two-Switch chip ) Connected 4 colors, 5 colors and 6 colors two-switch-chip
Press one switch twice is ok instead of taking out cartridge to reset when use on Continuous Ink System of
Epson stypus D78/DX4050/DX7000F/DX6050/DX6000