Yeah!
How about using black injet ink? I think it'll be denser than food
coloring.
Try mixing it outside the printer first, to make sure it doesn't react
and glob up.
Heating the board before printing may help it dry before it gets a
chance to run.
Steve
--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...> wrote:
> got he epson stylus color II going, got the mixture of 15 ml
> MOP&GLO,9 ml red food coloring, 9 ml water through the black print
> head. had to clean the black print head several times,there is no way
> of knowing how long the printer had sat drying out. was about to give
> up when the new ink came through. it came out light colored print but
> very clear and sharp letters, may need to be light when printing on a
> pcb because the copper doesnt absorb the ink. had to set the
> brightness as dark as could and the contrast as high as could. of
> course this may change when printing on a pcb.
> I am sure all the printer setting plus diferent mixture of liquids
> will have to be adjusted as i work it out.
> NOW----I dont know how long the print head will set being not used
> before it drys out in the print head with this blend of liquids.the
> piezo print head is working so far.
> wish me luck
> mebo
>