These printers work by spraying tiny droplets of liquid ink onto paper. The print head contains thousands ... as they don't need the space for a moving laser and mirror system.

Note the dual vertical assemblies – one carrying the extruder, the other carrying an inkjet print head. The hack is simple, consisting of a second vertical frame added on to the printer.

Lift up the scanner and you’ll see the lids of the four ink tanks and the two moving printheads. Unlike Epson and Canon’s printers, these print heads are replaceable, which could be an advantage.