Re: 3000 clog and Tomcat - isopropanol

[Ben Haskell <npthaskell@harborside.com>]

rafeb wrote:
> No, that's not quite how it went, Ben.  The
> exact sequence of events was more like:
> 
> 1.  Prepared a set of carts filled with
> pure, undiluted Archiva ink....

I thought that you zapped a print head about a year or so ago, long
before you built up your courage to try refilling once again, more recently.
  
> I believe I also encountered posts from you, or
> Tomcat, or ?? saying that pure alcohol was *not*
> a good flushing agent -- but rather, to use
> distilled water, with perhaps a few percent of
> alcohol in the mix.

I have posted possible problems with isopropanol, which could be
interpreted as "warnings", but I have never "forbidden" the use of
isopropanol as a flushing agent.
I believe that John Mills of www.WeInk.com, years ago, also posted
warnings for different reasons (along the lines of "does isopropanol
dissolve the print head assembly glue?"), but then recanted those
warnings. I would be comfortable with a 1:1 (or better yet a 1:2)
dilution of 70% isopropanol with distilled water, as a flushing agent. 

> This leads me to another topic.  Having prepared
> (filled) carts with some ink combo that's known
> to be bogus, what's the best way to empty them
> so that you can "start over" as cleanly as
> possible?

At $5 to $10 per blank, the best way to start over is to get a new
virgin blank.

-- Ben Haskell
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