Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Iury Carlos" <iury@...> wrote:
>
> Hi, my name is Iury,
> I'm a brasilian engineering student.
> I realy would like to build my own inkjet pci printer.
> But I have some questions...
> First, I need to know about the "paint". Some alteration is needed
or the 
> comum (original or remanufactured) can be used?
> And about the printer?
> What models are recommended?
> In my country HP is easiest to find...
> Hp cartridges can be used?

Stefan said it, so far only Epson with MIS PRO inks. From Stefan and
Volkan's tests, the yellow MIS PRO ink seems best.

However, I suspect the important quality may be that it be a pigmented
ink. The HP black heads use pigmented ink. From the Epson tests, black
didn't work the best. HP does -not- have pigmented colors in their
desktop printers.

However: There are color pigmented inks for large format HP, Encad,
and Mimaki printers, all of which are bubblejet. Encad printers use
the black HP print heads, only filled with color inks. I am sure HP
large format printers use the same sort of setup.

Pigmented inks meant for Epson piezo heads (like the MIS PRO inks) do
not seem to work in HP bubblejet heads. However, obviously HP and
Encad make pigmented inks for bubblejet heads. There are also 3rd
party pigmented inks for wide format bubblejet printers.

Now that Stefan has duplicated Volkan's results, with the
determination that cook temp of the ink is the vital link, we should
see some quick progress in testing of different inks. I have some HP
printers and some very thin PCB that I can run through unmodified to
test HP OEM black inks.

BTW, it may be that the color bubblejet inks work in desktop color
printers. I have some Encad pigmented ink that I hope to try. Even if
not, if the Encad pigmented inks cook to stand up to the acid, color
ink could be loaded into the black HP cartridge.

I think only the HP Photo Black is dye.

Same goes for Canon, BTW. Regular black is pigmented, and some brands
of wide format printer (Techjet?) use four of the Canon black print
head, only loaded with the proper color ink.

Steve Greenfield