The patent free products are simple and refined in structure, which simplifys the technics and ensure stable quality. Meantimes, our patent free products perfomance well both in hue and in fluidity, able to comparing beauty with the origional ones.

 

 For Epson Series, our patent free prodcts such as RC-711, RC-731 series , consisit of two parts, one is ink tank an another one is conversion rack. You may just purchase ink-tank and send them by ship and whenever the chip updated, you purchase our conversion rack with chip and sen it by air. What you want to do is just call us and receive the products within one week wherever you are. Whether one-off chip or permanent chip, it depends upon you.