Digital BW, The Print

David,

> 
>> To fill or re-fill these carts, all one does is pull the cork, 

>I'm in the middle of running my first set, and wondering how 
>I'm going to pull that little plug out ...

I now make sure they are not pushed all the way in.  They are in the shape
of a little cork.  So, I make sure the wide end is enough outside the cart
that I can pull it out with a finger nail.  Today I had one that I'd pushed
in too far, but I was able to extract it with the point of a razor knife
blade.

>By the way, when I first filled mine I didn't do that primer
>draw from the bottom, and the results were nerve-racking.
>Took *forever* to get a good nozzle check, but now they are 
>perfect every time. I assume I don't need to do that on 
>subsequent fills, correct?


No, once it starts, it's good.

But, as you've also discovered, it's important to prime the carts by pulling
a bit of ink out.  I use an MIS bottom fill adapter on a syringe.  I've
modified the bottom fill adapter by shortening the end to 7 mm.  (I first
did this to be able to pull ink from 7600 carts, but it seems to work for
these poppet valves also.)  The idea was to get the snout long enough to
open the valve, but short enough that the wider part of the bottom fill
adapter could be pushed tight against the bottom of the valve to seal the
connection.  I turn the cart upside down when I do this so that the bubble
that is there will be pulled out first.  As soon as I get ink I stop.  I'm
thinking it might also make sense to tip the cart just enough so that the
ink in the reservoir is up against the opening between the 2 chambers.  This
would stop air from being pulled in through that opening.

Anyway, I refilled 3 carts today and had perfect nozzle checks with each one
immediately without doing any more than squirting about 10 cc of ink into
the reservoir and re-setting the chip. 

Paul
www.PaulRoark.com