Digital BW, The Print

I wrote once but didnt see my message here.  Maybe someone deleted my 
message.

I am having this problem too.  I saw it on more than on lid not just 
the black.  I dont remember what other bottle it was.  I will watch 
out for that.  I can't seem to relate it to temperature changes or 
anything.

Is anyone else having this problem?  It seems to be there then go 
away then come back.  It seems like a lot to me.

I have been watching for density variations in my prints - has anyone 
else seen this?  Also it sounds pretty lame to say that clumping is a 
feature not a flaw.

t.i.a.
FR


--- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" 
<paul.roark@v...> wrote:
> Tom,
> 
> You wrote:
> 
> >I've got condensation forming inside the cap of the black ink 
bottle
> >on my NoMoreCarts CIS. I'm using the MIS VM Hex inks ...The other 
five
> >bottles show no signs of condensation.
> 
> The MIS VM black, like Piezo inks, uses a more volatile co-solvent 
base.
> (You may have noticed a rather strong smell with the MIS VM 
black.)  The MIS
> VM midtones do not use this base.  So, you'll more likely see 
condensation
> in the black bottle than in the midtones.
> 
> As far as I can tell, the volatile base does not cause problems 
with the
> black ink.  In the Piezo midtones I think it is part of the problem.
> However, with the black ink, neither the Piezo nor MIS VM inksets 
appear to
> be having problems with it.
> 
> The co-solvent base could be part of the ink's relatively good 
performance
> characteristics.  It's faster drying leaves more of the particles 
on the
> surface of the paper.  (Some Iris printers used to put little fans 
at the
> heads to dry the ink as fast as possible to get better blacks.)  
Also, the
> co-solvent base is said to cause the ink particles to clump 
together on the
> paper more.  This clumping may account for part of the superior
> fade-resistance the MIS VM black shows.
> 
> Paul
> http://www.PaulRoark.com