Homebrew PCBs

Never, ever use just isopropyl to clean heads. It doesn't completely
dissolve all the ink, and worst of all it replaces/displaces the water
in the ink, then dries quickly and completely, leaving behind a
compacted hard mess.

I use a mixture of ammonia, water, and isopropyl. Details here:
http://www.polyphoto.com/tutorials/printheadcleaning

Do NOT think that more is better! Do NOT use undiluted household
ammonia, do NOT use lemoney scented ammonias, do NOT use bleach!

I've cleaned up a lot of clogged Epsons and never had to remove the
heads to do so.

Steve Greenfield

--- In Homebrew_PCBs@yahoogroups.com, "Patrick" <hmmmyes2wha@...> wrote:
>
> Hello all - 
> A little update needed.  I'm working on my second C84 conversion, and
> had it working.  But then the heads clogged(?), and after more
> cleaning (even soaking for 2 days in a few mm deep isopropyl alcohol),
> I can't get the ink to feed through the heads, at least not much. 
> Printing is very faint, and only the black print heads work.  No
> amount of having the printer clean its heads seems to have done
> anything.  Any hints?  Is it time for a new broken printer?
>