Hello, Everett.  Running behind in responding here - -  back on 8/21-

-=> EVERETT HERTENSTEIN wrote to JIM HOLSONBACK <=-

 JH> When I do get around to working on the supply of dried-out Canon
 JH> printheads here, I think I'll start with Isopropyl, maybe mixed
 JH> with some distilled water.  Overnight soak minimum, then with a

 EH> I have not done this, but if you're desperate, sometime try distilled
 EH> water with just a _little_ household ammonia.

 EH> An alkaline solution (with the ammonia) is a great solvent for dried
 EH> India ink.
 EH>  It just might work here, too, even though the printer ink is
 EH> definitely not India ink.  In desperation, it wouldn't hurt to try.
 EH> :-)

I _still_ haven't gotten around to working on these old inkjet
cartridges here.  (I'm running behind on that, too) There _must_ be a
way to revive them, since I see some of the large office supply chains
are offering a "bounty" of a ream of paper for turning in the old ones.

Distilled water alone has pretty good solvent properties,  being so low
in ions and those polar H2O molecules looking to tie up with something.

If I fail with the distilled/isopropyl, I'll surely give ammonia a try.
Not for too long, though, as I'd worry that the NH3 or the OH might end
up corrosive to the contacts on the ink cartridge.  rummage, rummage -
Looking at an old HP cartridge,  I'd use the ammonia in a shallow pool,
so as to contact only the inkjets on the bottom,  not the contacts which
run up the back side of the cartridge.

ttyl - - -  JimH.
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