The inkjet printers will use tanks of ink rather than ink cartridges. This will save the consumer a lot of money as cartridges are typically expensive. There will be the standard 4 color system, and the printer will still print if one tank is empty. It will just obviously not be able to use that color. While inkjets are cheaper than lasers, they can also need their print head replaced as it will get clogged up with the ink it prints from. The standard ink for this system will be a pigment based ink which smudges less.