Yes, I know that most printers don’t bring anything new to the scene besides improved specs, but this concept by Jim Woo Han is different.

Instead of the old-school (and normal) paper sheets, the printer uses roller paper, and it features a cutter in the inside so you can make the page have the dimensions you desire, without actually needing to cut it yourself. It is compatible with A4 or A3 paper sheets, and from there on you can pick the length of the paper.