New Scientist reports that a team at a University in Tokyo has adapted a Canon inkjet printer to eject scent droplets. This means that one day you might be able to print appropriate scents along with the inks that make up your image. Output a picture of a flower and the print might come up smelling of roses.
The next step is to work out a way of ejecting scent at the same time as the image is printed. Then there is the small matter of matching the scent to the image. And finally, to avoid the need for a multitude of cartridges filled with specific aromas, the scent has to be made from a small number of components. Unfortunately, there is no RGB-equivalent for the creation of scents.
So don't hold your breath.
The next step is to work out a way of ejecting scent at the same time as the image is printed. Then there is the small matter of matching the scent to the image. And finally, to avoid the need for a multitude of cartridges filled with specific aromas, the scent has to be made from a small number of components. Unfortunately, there is no RGB-equivalent for the creation of scents.
So don't hold your breath.