Saying it is the first to do so, Chinese aftermarket supplies giant Ninestar recently launched new cartridges for Canon PIXMA MG5750/MG6850/MG7750 series printers. Canon introduced several new inkjet all-in-ones last August with the biggest difference between the old and new models being new ink tanks. In the United States, Canon announced the PIXMA MG5720, MG5721,
