Then, they use a digitally controlled inkjet printer to spray a thin layer of the e-tattoo ink on to the spots. The process is quick, requires no contact, and causes no discomfort in patients ...

Researchers map out the electrode locations using a computer and then use a specialized inkjet printer to spray the liquid ink onto the ... applied these temporary tattoos to the scalps of five ...

Andy: Today, we'll be trying out the Prinker, a device that prints temporary ... tattoo or you've got one that you wish you hadn't, then the Prinker could save you from a lifetime of ink regret.