INKUTEN Chip Resetter for use in PGI 250 CLI 251 Ink Cartridges PIXMA MX922 IP7220 IP8720 IX6820 MG5420 MG5422 MG5520 MG5522 MG5620 MG6320 MG6420 MG6620 MG7120 MG7520 MX722 Resetting the PGI-250 black and/or the CLI-251 color cartridges is a snap with this USB powered resetter. It can reset the chip on the genuine canon ink cartridge into a full mode and show ink volume on computer. Benefit: No batteries needed. Conveniently plugs into your computer, and easily plugs into a wall outlet with an adapter *This resetter requires a USB cord for power. (Not included)