@natevw it's difficult, the printer doesn't want to deposit a thick enough layer of toner, even with +6 density. It also can't properly print on transparencies or the chinese glossy paper. This is semi-glossy magazine paper and I had to use a print pattern like this, with more copies it got smeared. I'm yet to see if it works (the new technique here is acetone-based cold transfer) - I expect over-etching and holes in traces