This short video shows you how to change your Epson T0711, T0712, T0713 and T0714 cartridges in an Epson DX7400 printer.

Youtube Video: Changing the cartridges

The instructions are very similar across all Epson machines:

Epson Stylus BX300F BX310FN BX600FW D120 D78 D92 DX4000 DX4050 DX4400 DX5000 DX5050 DX6000 DX6050 DX7000F DX7400 DX7450 DX8400 DX8450 DX9500F B1100 B40W BX610FW S20 S21 SX100 SX105 SX110 SX115 SX200 SX205 SX210 SX215 SX218 SX400 SX405 SX410 SX415 SX510W SX515W SX600FW SX610FW