PCBs can now be printed on our desktop. So we can differentiate this type of printed PCB from the classic PCB (which is not printed), let’s call them DPCBs (desktop printed circuit board.) The technology looks very much like, and is very similar to, “3D printing.” It just requires much finer resolution, better repeatability, and higher precision.
A typical method involves printing with a conductive liquid ink. The dpcb is then baked for an hour or so to “cure” the ink. Curing changes the ink from a very viscous liquid into solid and makes the ink very tough.
Your DPCB machine may also facilitate board stuffing and / or reflow of commercially manufactured PCBs.