Digital BW, The Print

I should state that when the new driver software was released for the 
1160, I did NOT update it on purpose. I wanted to use a consistant 
driver- one I had been using since about December. So I did not 
introduce this additional variable in my testing.

While using this one driver on the 1160, I had DSS occur , reaching 
terminal stage on June 23, 2001. After doing the Epson cart flush, 90% 
of it went away, suggesting the problem, whether it be ink related or 
not, exhibited itself in the interface to or within the printhead.

DSS was re-detected after a round of reference print printing on 
September 12, 2001. This is the same time the new driver was released, 
but I DID NOT update. I ran more Epson cart flushes, but did not have 
as high a sucess rate in returning print to normal...I would guess it 
only returned about 70-80% to normal, not acceptable at all.

AFTER this, I then updated driver and reprinted my reference prints 
with new driver, so I could tell the effect this variable had as well, 
although since my printer was sick with DSS, the results were 
meaningless, unless judged relatively (that is before driver update 
compared ONLY to post driver update). And soon after this I abandoned 
my 1160 printer for a new one, and bought a new CIS, and a set of MIS 
VM inks.

I am now at the six week reference print point and can detect no DSS 
at all in new printer/MIS. This is a short period of time for it to 
develop in however; six month data, more meaningfull, will have to 
wait.

FWIW
Jim H. 


--- In DigitalBlackandWhiteThePrint@y..., "Michael J. Kravit" 
<mkravit@k...> wrote:
> For those following the desnsity decrease problem I was having, I 
> thought I would update everyone and let them know that Ink Jet 
> Mall/Cone Editions has discovered where the problem is.
> 
> It seems that when the newest release of the Piezo driver was 
> released, the driver included not only new profiles for additional 
> papers, but revised profiles for the existing papers. These new 
> profiles are printer and paper specific and produced on very 
accurate 
> and sophisticated equipment.
> 
> The new profiles tend to open up shadow detail which was interpreted 
> as a decrease in density on my part. The cofusing part was that we 
> were told that the old profiles were the same. Confusing to say the 
> leaset.
> 
> So in summary, although my printer needed and benefited from a good 
> servicing and replacement of the heads and dampers, the density 
> decrease appears to be due to the Piezo software upgrade and not the 
> sludge buildup. In reality, it was not a density decrease, but an 
> updated more accurate paper profile.
> 
> Good printing to all and Happy Thanksgiving.
> 
> Mike
> 
> Michael J. Kravit, AIA
> Architect/Photographer