In a GRS class, I found that printing a design out in reverse with their particular Canon laser printer and using acetone to transfer the image to metal worked great for me. When I got home, I found that none of the 3 Brother laser printers had output that would work with acetone. I have seen several recommendations for this or that particular toner cartridge, but most were old enough that those cartridges weren't used in any currently available models. I went to an office supply store and got them to print out the test page from each of their low-end black-only laser printers. I found all of the inexpensive Canon and HP printer toners (available at that store) worked just fine with acetone. So, I suggest that getting and trying test prints from printers easily available to you is a great way to find one that works before spending $$ on one. I found one on sale for $100 that works great. Having a dedicated black-only printer seems to work best, because many color printers will try to make up black with color toners if you don't remember to change the printer to a black-only setting. Black made of color toners doesn't seem to work as well as black toner for some reason.