Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Jerry Olson 
<jerryolson@r...> wrote:
> 
> Steve, all I asked is if anyone who was using the Eboni black had
> experienced any problems. Nothing more. The ink has been available 
on
> their site since 3 March. Banding problems can be caused by many 
things
> other than ink.
> I have just now traced my own problem to a bad vacuum pump. When I
> refilled, using the very first pump I got with my first CIS system 
about
> 6 years ago, everything worked fine, I THINK. At least all the ink
> chambers are now totally full, as seen by the eye, and the ink in 
the
> bottles went down much further than they did the first time, using 
the
> new pump; also there is now no air that can be seen in any of the 
ink
> tubing. I've examined them closely, and there's not even an air 
bubble
> in there!
> 
> I'll let the system set over night before I install it into the 
printer
> and see if it will work now.
> >
> 
> I'm sorry if I was too soon with my question, but I thought that 
was the
> whole purpose of beta testing, to see what other people's results 
are? 
> I never said a word about the ink being bad. I was simply 
wondering if
> anyone had my problems. In MY case, it was a bad vacuum pump.
> 
> > About your CIS problem; you asked if a complete vacuum was
> > neccessay, and I don't recall anyone answering that directly. If 
you
> > have any air leaks in the system anywhere except at the vent 
hole in
> > the bottle, the system will not work, 
> 
> Assuming the problem was the pump, and there are no air leaks 
anywhere,
> would the fact that the cartridges were totally saturated with ink 
be
> ok, as long as there were no air in the cartridges and no leaks 
anywhere else?
> 
> Jerry

Jerry;

My apologies for jumping on you about the beta testing, I was wrong 
about posting ; but the fact that you have now traced your problem 
to a bad pump uderscores my point; you have a lot of people really 
worried about trying the ink, without really knowing for sure that 
was the problem. As for the vacuum in the CIS; it doesn't matter if 
there is a little air at the top of the cart, as long as there's a 
solid pool of ink around the intake nozzle, and there are no air 
leaks, so that new ink gets sucked in as the printer puts it out. 
The vacuum created by the head putting out ink is probably very 
weak, so not only is it important not to lose vacuum, you need to 
have the bottles at the right level also, to avoid head starvation.

Best luck, I hope the CIS finally gets going properly for you.

Steve Karafyllakis