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From: jeffe@eniac.seas.upenn.edu (George Jefferson )
Newsgroups: comp.sys.mac.hardware
Subject: Re: Refilling DeskWriter ink cartridges--a failure.
Message-ID: <29481@netnews.upenn.edu>
Date: 12 Sep 90 22:20:16 GMT
References: <12366@arisia.Xerox.COM> <1990Sep12.202224.10904@d.cs.okstate.edu>
Sender: news@netnews.upenn.edu
Reply-To: jeffe@eniac.seas.upenn.edu (George Jefferson )
Organization: University of Pennsylvania
Lines: 18

>I'm no HP guru (I don't even have a DeskWriter, but I wish I did) but have you
>considered loading it up with water or a mild solvent and letting it clean
>itself out a little bit THEN filling it with red ink?

Well, my curiosity finally got the best of me.  I just had to open 
the top on one of these things. (with a hammer :-)

Sure enough there is a sponge inside, with suprisingly little
residual ink remaining.
The ink is water soluable right?  I rinsed the sponge under warm water
and it is as clean as new.  I think if you tried to flush the cartridge
without opening it you would never get the sponge to dry properly.

Also, the vent hole is just a hole.  I dont think that having a bigger hole
would hurt anything.  If your ink runs too fast, you need a more
viscous ink.

-george