1.QE-528chip resetter for Canon PGI-820/CLI-821 cartridge chip 2.Reducing printing cost QE-528chip ... resetter for Canon PGI-820/CLI-821 cartridge chipSolution:PGI820/CLI821 chip resetter can reset ... MP620 MP630 MP640MX860 MP980 MP990 Compatible with Cartridges model:PGI-820 ,Black CLI-821 , BlackCLI-821, CyanCLI-821, MagentaCLI-821, Yellow ...