The problem is mixing it with the plastic. so far I don’t think anyone has come up with a hotend that will enable efficient mixing of plastic and toner or even plastic and plastic.
what’s the melting point of toner anyway?
@Jonathan_se5a_Sorens According to Wikipedia, trying to wash toner off with warm water will cause it to soften and adhere to skin - so the melting point must be very low.
I wonder if it would decompose before the PLA/ABS reached working temperature. I didn’t see melt point figures on Wikipedia for the various binders, and even if the binder didn’t decompose the dye might.