Over the holidays, Canon U.S.A. introduced its PIXMA G-series MegaTank printers, including the PIXMA G1200 MegaTank single-function printer and the PIXMA G2200, G3200, and G4200 MegaTank all-in-ones. These inkjet devices use an ink-delivery system similar to a continuous ink-supply system (CISS), have large refillable ink tanks, and ship with high-yield ink bottles. While new to