Digital BW, The Print

Tom, I hope someone has a solution for this problem, as I have it too.

Same circumstances.  Had a 1280 for a year and it worked well with UT2 inks.  
Then I switched to the MIS spongeless carts, and it worked well for a few 
months.  Then the light magenta nozzles would clog.  Switch to Epson Carts, and I 
could get them working again.  Back to UT2 and the LM nozzles would clog.  
Eventually, I couldn't get them to work at all, so I bought a new 1280.  Worked 
for a while, then the same problem with the LM nozzles.  Had Epson replace it. 
 After a week or so, the problem came back with the replacement!  Same 
problem with 3 1280s!

Now I can consistently get all nozzels working with my tinted cleaning fluid 
(also in a MIS spongeless cart), but as soon as I put the UT2 in spongeless 
carts in, most of the LM nozzles disappear.

At first I thought the problem could be the spongeless carts are flooding the 
head circuit boards in the same area to short out the LM circuitry.  I also 
thought that my 2 year old bottle of UT2 LM might thickening up, but I put some 
new ink in to no avail.  I also suspect that it could be a manufacturing 
defect with the spongeless carts, like a leaking LM seal due to misalignment of 
the port, but this wouldn't explain why the spongeless cleaning cart works 
consistently.

I am now looking for some sponge carts to try to see if the spongeless ones 
are the problem.  Does anyone know where I can get them?

Bout ready to toss the 1280s and get something else.

Tom Wells

This confirmed a suspicion I had about spongeless carts I got from
another source not MIS. I think the problem is with the filter inside
the carts that eventually will not let any ink go through. I think
they were designed for dye ink.

You can't even suck ink from a clogged cart using a bottom fill
adapter. I did another test by thoroughly cleaning a clogged
spongeless cart by filling it with windex then back flushing it
through the inlet then refilling the cart again with MIS pigment ink.
The cart would work for a couple weeks then clog up again. The back
flush cleaning couldnot completely clear the filter of debris.

Since I decided to switch printers I did not pursue this issue any
further.

--nick

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, toliwel@... wrote:

>
> Tom, I hope someone has a solution for this problem, as I have it 
> too. Same circumstances.  Had a 1280 for a year and it worked well 
> with UT2 inks.  Then I switched to the MIS spongeless carts, and it 
> worked well for a few months.  Then the light magenta nozzles would 
> clog. ...

Tom, sorry to hear about your similar problems. Have you spoken with
MIS tech support about your experience? I talked with Marc last week
and he's the one who suggested that I try to push the poppet valves up
into the cart.

When that worked (for 2½ prints), I quickly emailed him to let him
know. Friday evening I emailed him again to let him know that the
success was short-lived. This morning he responded by asking what inks
I'm using in the carts. I replied mid-day to remind him that they're
UT2 inks, but haven't heard any more from him. If I don't get a reply,
I'll call again.

Tom

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, toliwel@... wrote:
>
> Tom, I hope someone has a solution for this problem, as I have it too.
> 
> Same circumstances.  Had a 1280 for a year and it worked well with
UT2 inks.  
> Then I switched to the MIS spongeless carts, and it worked well for
a few 
> months.  Then the light magenta nozzles would clog.  Switch to Epson
Carts, and I 
> could get them working again.  Back to UT2 and the LM nozzles would
clog.  
> Eventually, I couldn't get them to work at all, so I bought a new
1280.  Worked 
> for a while, then the same problem with the LM nozzles.  Had Epson
replace it. 
>  After a week or so, the problem came back with the replacement!  Same 
> problem with 3 1280s!
> 
> Now I can consistently get all nozzels working with my tinted
cleaning fluid 
> (also in a MIS spongeless cart), but as soon as I put the UT2 in
spongeless 
> carts in, most of the LM nozzles disappear.
> 
> At first I thought the problem could be the spongeless carts are
flooding the 
> head circuit boards in the same area to short out the LM circuitry.
 I also 
> thought that my 2 year old bottle of UT2 LM might thickening up, but
I put some 
> new ink in to no avail.  I also suspect that it could be a
manufacturing 
> defect with the spongeless carts, like a leaking LM seal due to
misalignment of 
> the port, but this wouldn't explain why the spongeless cleaning cart
works 
> consistently.
> 
> I am now looking for some sponge carts to try to see if the
spongeless ones 

> are the problem.  Does anyone know where I can get them?
> 
> Bout ready to toss the 1280s and get something else.
> 
> Tom Wells
>

The latest:

Since I hadn't heard back from MIS tech support for a couple of days,
I decided to try printing again from the older of my two
non-functioning color carts with UT2 inks. This cart had been left in
the printer when I gave up a few days ago.

After a few passes of the printhead, it began printing the purge
pattern perfectly! I notified Mis tech support of this and got the
following reply.

"Are you using the cartridges clamp to hold the cartridges in the
carriage of the printer? If so note the location of the breather vent
on top of the cartridge. I would not suggest unlocking the cartridges
if they are working, but the next occurrance you have to remove the
color cartridge, observe the location on the bottom of the clamp that
applies pressure to the top of the cartridges to hold it in place. On
only about three cases I have heard that the clamp actually covers
some of the breather vent on the top of the cartridge preventing air
from entering the cartridge when the print is trying to pull ink. 
 
You can easily remedy this by a number of techniques. One be certain
there is no remaining tape covering the breather vent from when you
first peeled it off prior to its first use. Two, open the breather
vent vain that runs across the top of the cartridge, just a bit
further then from the holes that are exposed when the tape is first
removed. Three, add a small riser perhaps of tape so the clamp begin
to apply pressure sooner to the cartridge in another area, that being
the location where you have added a small amount of tape.
 
Hope this continues to work for you. Of the thousands of these
cartridges we have sold you are only about the 2nd or 3rd person I
have had to suggest this to.
 
Good luck,"

Given all the trouble I've had with the MIS spongeless carts, I'm not
about to remove a working cart from the printer. When I do need to
remove it, I'll try one of the remedies MIS suggests and let the board
know what happens.


Tom Keesling


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tom Keesling"
<restorephoto@...> wrote:
>
> Tom, sorry to hear about your similar problems. Have you spoken with
> MIS tech support about your experience? I talked with Marc last week
> and he's the one who suggested that I try to push the poppet valves up
> into the cart.
> 
> When that worked (for 2½ prints), I quickly emailed him to let him
> know. Friday evening I emailed him again to let him know that the
> success was short-lived. This morning he responded by asking what inks
> I'm using in the carts. I replied mid-day to remind him that they're
> UT2 inks, but haven't heard any more from him. If I don't get a reply,
> I'll call again.
> 
> Tom
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, toliwel@ wrote:
> >
> > Tom, I hope someone has a solution for this problem, as I have it too.
> > 
> > Same circumstances.  Had a 1280 for a year and it worked well with
> UT2 inks.  
> > Then I switched to the MIS spongeless carts, and it worked well for
> a few 
> > months.  Then the light magenta nozzles would clog.  Switch to Epson
> Carts, and I 
> > could get them working again.  Back to UT2 and the LM nozzles would
> clog.  
> > Eventually, I couldn't get them to work at all, so I bought a new
> 1280.  Worked 
> > for a while, then the same problem with the LM nozzles.  Had Epson
> replace it. 
> >  After a week or so, the problem came back with the replacement! 
Same 

> > problem with 3 1280s!
> > 
> > Now I can consistently get all nozzels working with my tinted
> cleaning fluid 
> > (also in a MIS spongeless cart), but as soon as I put the UT2 in
> spongeless 
> > carts in, most of the LM nozzles disappear.
> > 
> > At first I thought the problem could be the spongeless carts are
> flooding the 
> > head circuit boards in the same area to short out the LM circuitry.
>  I also 
> > thought that my 2 year old bottle of UT2 LM might thickening up, but
> I put some 
> > new ink in to no avail.  I also suspect that it could be a
> manufacturing 
> > defect with the spongeless carts, like a leaking LM seal due to
> misalignment of 
> > the port, but this wouldn't explain why the spongeless cleaning cart
> works 
> > consistently.
> > 
> > I am now looking for some sponge carts to try to see if the
> spongeless ones 
> > are the problem.  Does anyone know where I can get them?
> > 
> > Bout ready to toss the 1280s and get something else.
> > 
> > Tom Wells
> >
>