No technology actually works, it is all a magical illusion. You may think a steam engine works with heated water and pressure; a computer with circuits and electrons; etc.; well, that is all gobbledygook, and what actually makes any of these things do things that occasionally seem useful is nothing but powerful illusion magic. If the assembly of mages decide to dispell the illusion, we’ll be back in the middle ages. For one thing, it seems they never really got the illusion to work quite right for printers.