Homebrew PCBs

I've heard both complaints, you'd think the higher temperature wouldn't be
that hard to overcome.  Pull the fuser from an old Brother laser and use
that for the transfer.

Obviously something different in the chemistry there...  Might be like power
coat, the powder fuses at 200C (~400F) but once cured can easily survive
twice that temperature.

I guess it'll remain a mystery.

Tony



> "... with Brother lasers is the toners isn't re-fusable ..."
> 
> Actually I think the problem is as someone else has suggested, i.e. that
the
> required fuser temp is much higher. I have a Brother MFC-8500, probably
> about 10 years old now, still works fine but not very well for TT. Prints
look
> fine on paper, even for large dark areas, but it's hard to get the toner
to stick
> to a copper clad board and the toner isn't dense enough to completely
block
> out the etch acid. Same problem making transparencies for photo resist
> masks.
> --
> Phil M.