Simple technique to make PCB using laser printer and household iron.
This simple heat toner transfer method for quick home prototyping.
This method works because it employs physical properties of laser printer toner.
Basically, toner is a mix of a black pigment and very fine plastic powder.
While paper is being heated by fuser inside printer, plastic particles melts and sticks to paper.
Now, if we attach paper to flat surface and apply heat to paper so temperature of paper exceed toners melting point, plastic melts and sticks to adjacent surface.