Digital BW, The Print

Hi,
 I also changed from the Piezo inks to the MIS FS neutral inks for 
the same reasons, the support that i got from InjetMall was 
disgusting. I have stayed with their software because it works.
I have a 3000 and a 1160. It was the 3000 that I recently put the 
MiS inks in. They  (InjetMall) claimed that the green shift was 
caused be the ink base seperating from  the pigment, thus causing a 
sludge to build up in the cartridge. If this is so, then it is 
possible that the same sludge could cause a big blockage in the 
printhead. It seems to me that if one nozzle is blocked, ink is 
forced backwards from another nozzle giving the wrong color.(grey) 
Whatever the reason, I found that cleaning the head in one of the 
many methods cured the problem with the new inkset. 
The way I cleared my 1160, from a big clog was to load up a syringe 
with Windex and force it directly into the head with the cart 
removed with both a pumping and sucking action. It worked for me.
Keep going, I am sure that you will fix the problem. 
By the way, the FS neutral ink produced quite a different step wedge 
than the cone (Sundance)inks. 

Barry
--- In DigitalBlackandWhiteThePrint@y..., "Jim HARRIS" 
<harrisji@u...> wrote:
> I seem to have no luck with digital black & white.
> 
> I started with the Piezography system on an 1160 printer.  Got 
beautiful, stunning results.  But after a few months the 
dreaded "Density Shift Syndrome" (DSS) set in with severely washed 
out midtones and a greenish cast.  Inkjet mall was very good about 
sending me replacement cartridges for my CIS system.  I reinstalled 
Piezo inks in a new 1160 and got beautiful results again....for 
about 4-6 weeks.  Then signs of DSS appeared in the new printer.  I 
reluctantly decided to throw in the towel with Piezo inks and give 
MIS FS inks a try after reading so many good things about them in 
this group.
> 
> Today I hooked up new cartridges on my CIS system,filled them with 
new MIS FS ink, and got perfect nozzle checks the first time.  Then 
I tried printing only to discover that I still have absolutely no 
density in the mid-tones.  The prints are actually worse than my 
worst Piezo DSS prints - almost solarized.
> 
> I just printed a gray-scale step-wedge and found that things 
appear normal from about 0% to around 30% and from about 85-90% to 
100%.  But from about 35% to 80% things are a real mess.  There's a 
catastrophic drop in density from 85% to 80%, no discernable 
difference in density from about 60% to 80%, and the density at 50-
55% is actually greater than from 60% to 80%.
> 
> What is going on?  If any of you can give me some guidance, I'd 
appreciate it very much.  To help eliminate some variables:
> 
> 1. I am printing on the right side of the paper (I'm using EAM 
with the logo on the back).
> 2.  I double and triple-checked the inks before loading my CIS 
system.  I am certain that I loaded the inks, as labeled by MIS, in 
the right positions.
> 
> Here's what I'm afraid of.  Could a severe case of DSS with the 
Piezo inks have done permanent damage o my print head?  I did put 
the MIS inks into the 1160 that had a very bad case of DSS, but I 
have run a full set of Epson cartridges through it since then and it 
seemed to be printing just fine with the color inks (although I 
didn't ever print anything too critical with it and carefully 
analyze the results).
> 
> Any thoughts, suggestions, advice, etc. would be appreciated.
> 
> Thanks,
> 
> Jim