InkOwl - Universal Chip Resetter for most 7-pin EPSON ink cartridges - Check the description to see if your printer is included! Please verify your printer model # on listing before purchase! Original Epson 7-PIN & 9-PIN cartridges have special IC chips inside them that indicate their ink levels. Therefore, refilled cartridges will never show the correct ink level. However, our chip resetter can reset this chip allowing you to see your cartridges' ink levels. Simply align the pins and press down for several seconds to complete the reset.