Digital BW, The Print

Hopefully I can (or someone else) address David's issue about "clogging"
soon (which is not clogging - it's air, the peristaltic pump, pump tubing, a
damper leak, or the capping assembly). I've dissected, repaired, and
sometimes destroyed Epsons of all stripes and (like some people here) have a
detailed and intimate  knowledge of how the ink delivery system works - and
doesn't. (Did I really say intimate about a printer?). I've used Windex a
lot for years in one-two-three-four. nine of my own Epsons, for both long
and short term and I can guarantee it's not causing a problem with David's
3800 heads. I have used it for at least 18 months as a "dummy" fluid when I
didn't need to fill all the ink slots. There's plenty of copper in the
head's circuits but I doubt there is any copper in the heads' ink path.
Anhydrous ammonia is indeed reactive with copper but my heads would have
been goners a long time ago. I even put straight ammonia through the heads
some time ago with no ill effects. Windex has a high pH of just like
cleaning fluids. Empirically, Windex is safe in Epson heads and I'll stand
by that. Getting the circuits on the back side of the head plate wet with
Windex or any fluid will ruin the head and can likely take the main board
with it. 
 
Also David - I may have mentioned this before - DO NOT buff the head by
moving it back and forth across a soaked cloth, or if you do it, do it
gently and briefly with something like Pec-Pads. The idea obviously is to
dislodge ink or debris from a nozzle and it infrequently does work, but
you're almost as likely to permanently jam some junk into a nozzle. I've
done it, and then had to replace the head.  Some of the veterans here on the
list know that I've blown up every printer part that can be blown, probably
more times by stupidity than I care to admit. Setting the head down onto a
wet cloth or lint free paper for a while is OK. The rubber wiper is the only
thing that should swipe the head and it causes enough problems of its own. 
 
Best,
 
Tom
 
Tom Mallonee
Owens Valley Imaging
www.ovimaging.com
760.873.8501
 
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From: DigitalBlackandWhiteThePrint@yahoogroups.com
[mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Ken
Jaskot
Sent: Friday, June 03, 2011 4:54 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: [Digital BW] Re: Damage from Windex
 
  
I've only heard of, and used, Windex to help clear a printhead clog, by
parking overnight the printhead on a paper towel soaked with Windex. It
works, and I never noticed any resulting problems.

I did this with color bulk inks delivered via a CIS.

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