I did some reserach in what inventions havent been invented yet and there was one that stood out to me. the product is a printer that doesnt require ink. I think this would be an amazing invention to be honest. We wouldnt have to worry about buying ink all the time, it would save us in money. Many of us are workers and students and many of us require typing and printing out, things such as, essays, reports, schedules and more and maybe sometimes, when its all ready to be printed out, the printer is not printing because its out of ink. We get frusterated either you have more or either you need to go buy ink, and in my opinion ink is expensive, but a printer cant print without ink right? So, in my opinion, a printer that doesnt require ink would be a sucess, so i really hope this product is developed.