I used an HP LaserJet 8000 for many different boards, all worked fine until
we bought a replacement toner cartridge.  The new toner wasn't made by HP,
it was some off-brand.  From that point on the toner wouldn't stick (parts
would but like you said some parts wouldn't).  I changed to a different
printer and everything worked like a charm.  Do you have access to another
Laser Printer?  It may be worth a try.

I also use the scour pads (Brillo-type) to scuff up the boards and soap. And
make sure no oils from your fingers get on to the board.  I've had great
luck with the Staples glossy photo paper (for inkjet printers even though I
use it in a LaserJet).

I hope this helps!  

Good Luck,
Jeff

P.S. I also heard that some Brother laser printers have some toner problems
as well.





> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
> Of solarwind
> Sent: Wednesday, July 15, 2009 5:45 PM
> To: PICLIST
> Subject: [EE] Can't get the toner to stick...
> 
> I've tried this a few times and it's not working. I printed my PCB
> design onto photo glossy laser paper (will try magazine paper next)
> and then I iron it onto the copper board. Some parts stick, but some
> parts don't stick at all.
> 
> Any tips?
> 
> -- [ solarwind ] -- http://solar-blogg.blogspot.com/
> --
> http://www.piclist.com PIC/SX FAQ & list archive
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