Digital BW, The Print

Hi Paul, yes I'm using CIS. I cannot correlate the usage of CIS with 
Piezo problems, because is the only method I use. One year ago, I 
printed one set of Piezo cartridges and that was all with cartridges 
(they are expensive like hell).

I' starting to have very bad nozzle checks and alignment verification 
results (I can see banding on the prints as well), they go away after 
three of four cleanning cycles, but the thing happens to come back the 
next day. The sludge you mention is really scaring in my printer, but 
I suppose it does not introduce a problem in the heads themselves, 
unless the sludge is present also at the output of them, and this I 
cannot tell because my inspections of the printer do not go further 
than removing the upper cover and checking the parking pad status.

The filter you mention, why are they not use for CIS cartridges?

Thanks,
 Rodrigo

PD: the cleaning cycles normally spill around a lot of ink, making a 
mess during the firsts prints afterward. Due to this, I try as 
possible as I can to avoid the cleaning. 

<paul.roark@v...> wrote:
> Rodrigo,
> 
> Yes, I think MIS flushing liquid is a very good idea to help clean 
out the
> sludge that might have built up from these pigments.
> 
> But if there is a problem that is caused by too-large pigment 
particles in
> the head, even the cleaning fluid might not help.  In that regard, 
are you
> using a CIS?  The CIS cartridge may not have the 1 micron filter 
that is
> used in other cartridges to catch these large particles before they 
reach
> the much smaller filter in the head.  (Have you noticed a 
correlation
> between Piezo problems and CIS use?)
> 
> Paul