Digital BW, The Print

Paul,
can I replace the VM-Inks with the Ultratone-Inks when they are empty 
or do I run the risk of damaging the Printheads of my 1290? I've 
heard somewhere that once you've switched to a certain MIS Quadtone-
Set you should stick with this one. I also thought about replacing 
the VM-Set with the VMS-Set. Is it possible or do I have to buy a 
second printer for that?  
One last thing: When doing prints with your curves I sometime 
experience harsh black parts in the image. It's hard to describe, but 
it looks as if the parts with the black ink were solarized. Any 
solution for this issue? What about Tyler Boleys curves?
Sorry for the bunch of questions. Any help would be apprechiated.

Regards
Peter
--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark" 
<paul.roark@v...> wrote:
> Peter,
> 
> >Is it possible to do Prints on glossy paper with the MIS VM-Inks?
> >I've read somewhere that the final Print has to be sprayed with
> >something? Which spray is it? Does the PermaJet-Spray do the trick?
> 
> Yes, while MIS VM pigments are no "compatible" with RC/Glossy paper 
in that
> they will not stick well by themselves, a fixative type spray can 
take care
> of the problem.
> 
> I think most of the acrylic or lacquer sprays will probably work.
> 
> One difference with the new MIS Ultra Tone inks is that they will 
stick on
> RC papers.
> 
> Paul
> http://www.PaulRoark.com