Digital BW, The Print

Jim,

>>... relating to the 1280 clogs, etc., we won't miss the
>>co-solvent inks.
>> The co-solvent appears to evaporate faster
>>(and through the CIS tubing),
>> causing more than it's fair share of trouble.
>>The new high-load black can
>> achieve the same level of black with better
>>lightfastness and no co-solvent.
>

>Paul, does this mean that I could put your ver 4.3 UC MIS in my now
>idle 1280, and you would expect far less clogging, maybe as
>trouble free as my 2200/Epson UC? Might be interesting..

It would be an interesting experiment.  If the UC VM 4.3 is ever going to
clog, I'd bet on your environment showing it.

I can't really say, but I think that the co-solvent in the VM, FS and
PiezoBW black was part of the problem with those inksets.  There was quite a
bit of co-solvent in the PiezoBW mid-tones also, judging by the smell.

The VM midtones do not have co-solvent in them.  So, they should have
clogged less, all else being equal.

The UC VM 4.3 uses an entirely different base.  So, how it will do in
comparison to these others is a bit of an unknown to me.  MIS seems to think
it will be substantially better than the co-solvent inks.

Judging by how good the rest of the MIS 7600 inkset is, I would expect that
the chemists and engineers who put it together considered the clogging
issues as well as the others.  And they sure seem to have done an excellent
job on the issues I can test for.

My experience is that the new UC VM inks do not clog.  I've reached the
point where I don't even run a nozzle check on the 7500 before printing a
large image.  I've run through a half cart (i.e., about 50 ml) in the 7500
with no problems.  On the 1160 I've run through dozens of carts with no
clogs -- just the occasional air bubble after a new cart is installed.  So
it looks promising -- but I'm not in your environment.  So, no guarantees.

Paul
http://www.PaulRoark.com