>BTW have you tried to make a layout mask using transparency, ink jet
>printer and photoresist, is the quality and contrast acceptable?
>I have tried using laser printer, but have found that the black areas were
>slightly transparent to UV, so the resulting pcb was practicaly unusable.
>I also had no lack using this special transparencies (TES or something else)
>which you iron press on a copper board.

I'm using a HP 820cxi inkjet printer and regular
inkjet transparencies.

I buy PCB's with photoresist, and this works out ok for me.
Generally I don't use track widths less than 0.2 mm.

On the HP printer it seems that more ink is applied if I set the output
quality to maximum and specify "Premium paper" instead of "Transparency"


-Oyvind