The problem was that there wasn't enough ink on the PCB. Since my
printer has 6 different color cartridges and I only had a yellow one
with pigmented ink, I changed the chips with the black cartridge and
it helped a lot! Now I can print a black image and use the greyscale
setting, and it will come out yellow.
Finally I got a good amount of ink, so much that I preheated the board
to make it stay better. The results were promising but not
satisfactory, there were always some little faults in the PCBs after
etching.
I don't know if this method of making PCBs is any better than using UV
exposure..because that way the results are consistent. I tried
different methods to prepare the boards, and the got the best results
just by using some sandpaper and cleaning the board with isopropyl
alcohol..but I still feel that for some reason there is not enough ink
on the board on some locations because it doesn't survive etching
completely.
Do you think that this method can be a reliable? Maybe I should buy
more of those MISPRO cartridges.
--- In Homebrew_PCBs@yahoogroups.com, Volkan Sahin <v_sahin@...> wrote:
>
> Could you send some images before curing and after curing to figure
out the problem?
> Keep in mind that If you use single color it will be low resolution.
You need to use color black printing by this way printer mixes 3
colors to obtain black and get maximum resolution. I don't have R300
but with my CX4200 I am still getting excellent results and I am
always using 3 colors.
> Regards,
> Volkan
>
>
> asiido <ebay@...> wrote: I bought an
epson R300 printer, and a Mispro yellow spongeless cart.
> Now I have tried to make PCBs with it but no success.
>
> I've tried to prepare the pcb with Bora's HCL method, and sandpaper
> but seems like the problem isn't this because the results are
equally bad.
>
> I tried to cure the ink in an oven, and with a heat gun but again, the
> results were equally bad.
>
> After etching, the board shows just a faint image of the layout I
> tried to get, almost all the copper is gone and just small dots remain
> so that I can see the layout. I etched with a strong ferric chloride.
>
> I don't know if the problem is printing. Because I've heard that the
> mispro YELLOW is the best one, I bought a yellow cartridge. At first I
> wanted to install that in the black ink position but my printer won't
> allow me to do so. So I have to export my design from EAGLE editor as
> an image, and I change the color in Paint shop pro to Yellow...
>
> Please help, I really need to get this system working because it
> allows so much faster production of PCBs.
>
>
>
>
>
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