Stack inkjet printer is a graduate project by young designer Mugi Yamamoto. Sleek and compact, the device simply sits on top of a paper stack (hence the name) and moves down as pages get printed. Here is how designer explains his idea:

Thanks to this new way of printing it is possible to remove the paper tray, the bulkiest element in common printers. This concept allows a very light appearance and avoids frequent reloading.

The tray on top can accommodate a pile of 200 pages, which is pretty good considering the printer's size. Perfect for a home or small office.