Use Transparencies that list for use with HP printer. I have gotten the best results using HP Transparencies. Also gotten OK results using Office Depot inkjet transparency that does list compatibility with HP inkjet. The HP one have worked best for me. Be sure you select the printers setting for the Transparency, Also if your printer will allow you to set the printer ink to Heavy or any settings that will increase the amount of ink the printer puts down. Also yellow or green has better blocking to UV than Black.
Ben
--- In Homebrew_PCBs@yahoogroups.com, "thegimp98" <the_gimp98@...> wrote:
>
> First board came out usable, but I have a problem.
>
> I'm using 3M Transparency film for Inkjet Printers (CG3480) with a HP D4260 printer to make my masks.
>
> I fount microscopic pinholes in the traces which I traced to microscopic balls in the mask.
>
> At $50 for 50 sheets I can't recommend it.
>
> Is there a better film for inkjet printers?
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> TKS.
>
> Steven
>