1.no need the chip to work with cartridges again, 2.just setup the software in computer 3. it functions well.

Feature of USB software for printer

T20,T21,T13,TX121T22,TX120,TX130 (Asia-pacific Region)L100,L200S22,SX120,SX125,SX130ME320,ME330,ME340,ME33

Welcome to order this kind of product.

USB software for Epson printers-no need to work with chip