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At 07:53 AM 2/13/00 -0800, you wrote: >rafeb wrote: >> >> Whatever you do, I'd suggest *not* trying to >> run isopropyl alcohol through the heads, in >> any concentration. >> >> Been there, done that. Not a pretty scene. > >As I recall, your bad experience came from INJECTING the isopropanol >down the inlet nipples; and may or may not be the fault of isopropanol >per se. > >Whether cleaning with isopropanol is a good idea remains an open >question in my mind, although I myself have raised the issue as to >whether certain inks form sludges or precipitates upon the addition of >enough isopropanol. > >An ESC3000 user may not have the same issue of INJECTING isopropanol >down inlet nipples, since they may not have any, or at least in the same >form most of the rest of us have. 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. Sure, I know this is bogus (now) but in my excitement, I forgot to dilute the ink, and then decided (foolishly) to try it anyway. 2. Encounterd totally-blank or nearly-blank nozzle checks when I plugged these carts into my 1160. 3. Panic time. Having run one or two dozen cleaning cycles with only modest improvement, I injected about 4 or 5 cc of 91% isopropyl into each of the cartridge chambers. I figured, since the ink was *supposed* to have been diluted with alcohol in the first place, this couldn't hurt. The net result was that what little improvement I'd gotten was wiped out. 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. 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? rafe b. - Please turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for instructions.
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