--- In DigitalBlackandWhiteThePrint@y..., "jimhayes361"
<jimhayes@j...> wrote:
> --- In DigitalBlackandWhiteThePrint@y..., "azshtr" <dave@t...>
wrote:
> > Hi all,
> >
>
> > lines and the BLACK line was clogged again! This time it sat
> > unused for only 2 weeks. After I removed the system and
flushed
> > the line with a syring, sucked ink back into the line and
> > reinstalled it, I got a perfect head pattern.
> >
> > Is this normal? A clogged line after 2 weeks seems
excessive to
> > me. Anyone else have this problem and what are you doing
to
> > avoid it? (the obvious solution is to not let it sit unused for
very
> > long) Thanks for any insight.
> >
> > Dave Tevis
>
> After two 1160s an an 1280, both CIS and CFS, and vacuum
filled carts,
> old piezo and MIS VM and FS ink, and two years, my conclusion
is that
> two weeks is WAYYY too long! It depends on your climate and
the
> specific printer, some are better than others- but the ink has to
> negotiate a 90 degree turn and the head was not made for
pigment inks.
>
> I have a hot and dry climate here and have to control it so
humidity
> is above 40%RH and temp is below 77 degrees F. Even so,
through
> experience I now run a fast draft purge pattern every 12 hours
> followed by a nozzle check. If I don't I waste more ink in clearing
> clogs than printing the purge pattern. I suspect that is extreme
for
> most people, maybe once a day to once every three days is
okay. BUT
> NOT two weeks! You have to determine what interval works for
you-
> start out frequent and then less frequent- until you discover the
> point where you clog up.
>
> I've come to expect that wasting some ink in printing purge
patterns
> vs cleaning cycles is just the price we pay for running these
nice
> inks through the printer. I heard that the 2000P had more
gentle ink
> path through the head- if so I would expect the 2200 to be the
same as
> it uses pigs as well.
> Jim H.
You probably understood where my clog was occuring but just to
clarify... its the ink in the line that is drying, not the head that is
clogging. I don't see what a 90 bend has to do with it. The line
drys out and therfore the head can't spray ink with a vacuum in
the line. Clear out the line and it immediatly works great. In the
past I've never had this problem. Just the last 2 systems I had on
this machine. Although I admit that 6 months is way to long, I
would not expect dryed ink in the line at 2 weeks. I need to stay
on top of the printing to keep this system running, but problems
at 2 weeks I would expect a warning from MIS about the potential
of this issue.
Dave