Digital BW, The Print

Bernd,

could you please tell us if your 3000 printed a gray scale with the same ex=
act 
tones as it would before sitting for 2 months?

I found with my 1160 that I lost the midtones after a period of inactivity,=
 even 
though nozzle checks were clean. In over a year of using piezo inks with a =

CIS on that printer, I was never faced with "clogs from hell" (knock on woo=
d). 

The midtones came back after several prints or flushes had gone through. I =

suspect, we don't always check for grayscale consistency on our systems and=
 
rely on nozzle checks to tell us that everything is OK. 

It should be standard procedure to print a grayscale and check it against a=
 
known good sample (or read it with a densitometer) before any serious 
printing session.

All this is to say: do these inks settle? and if so, is there a difference =
between 
piezo and MIS in settling behaviour? 
Should we give them a stir every day whether we use them or not?

What is your experience on this?

Antonis


--- In DigitalBlackandWhiteThePrint@y..., "ruhrfoto" <ruhrfoto@y...> wrote:=

> Clogging has never been a big issue for me
[.......]
> Since I got my 7500  in January my good old working horse, the 3000 fille=
d  
with Piezo inks sits quietly on the shelf. I didn´t print one image for mor=
e than 
2  months with this printer. So I was aware of a super clogging problem, wh=
en  
I  reanimated it today. But I was absolutely surprised by the first nozzle =
check: 
it was absolutely perfect. Not one nozzle lost.