I printed with a laser printer, so no problems. Besides the non-toner side may have been against the PC board. With a laser you can always mirror image.
With my Epson Artisan 800 Inkjet, I can mirror.
With an HP Laserjet 2014dn PostScript I can also mirror.
Ink jet might bleed through polester, but toner won't.
Give it a shot.
Basically just rinse the board in some water. Shake off the excess water, but don't dry it. Lay the mask over the board. Expose.
--- On Sun, 3/22/09, DJ Delorie <dj@...> wrote:
> From: DJ Delorie <dj@...>
> Subject: Re: [Homebrew_PCBs] Re: vacuum hold-down for exposure box
> To: Homebrew_PCBs@yahoogroups.com
> Date: Sunday, March 22, 2009, 10:23 PM
> The ink didn't run? My ink isn't waterproof.