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From: il barbi on 10 Jan 2010 12:44
Does somebody know some trick for getting rid of air bubbles introduced by
ink refilling? I've always sucked some ink from noddles and made several
cleaning cycles but I still get white rows
il barbi


From: Nicolaas Hawkins on 10 Jan 2010 14:11
il barbi <angeieri.barboggi(a)ngi.it> wrote:

> Does somebody know some trick for getting rid of air bubbles introduced by
> ink refilling? I've always sucked some ink from noddles and made several
> cleaning cycles but I still get white rows
> il barbi

Think: 'centrifuge"

--
- Nicolaas
From: Al on 10 Jan 2010 17:03
On Jan 10, 2:11 pm, Nicolaas Hawkins <grumpy.m...(a)t.large> wrote:
>  il barbi <angeieri.barbo...(a)ngi.it>  wrote:
>
> > Does somebody know some trick for getting rid of air bubbles introduced by
> > ink refilling? I've always sucked some ink from noddles and made several
> > cleaning cycles but I still get white rows
> > il barbi
>
> Think: 'centrifuge"
>
> --
> - Nicolaas

Nicolass, have you ever decorated the ceiling with this centrifuge
method? I have used a plastic bag inside a sock or you could just go
outside. I have found the centrifuge method was not 100% successful
for me. I switched to bleeding with the cart upside down. The device
that fills from the noddles(sic) is probably best if one can find and
afford one.
From: Arthur Entlich on 11 Jan 2010 19:51
It depends a lot on which printer(s) you are speaking of.


Cartridges which have batting or sponges in them are the worst for this,
as they can trap air (and some do so intentionally to make them
difficult to refill) In fact some manufacturers put soap in the inks to
make the foam not accept the new ink.

If the last is the case, sometimes putting a few drops of alcohol into
the ink will break these soap bubbles down. You can use a negative
vacuum method for refilling, where you suck most of the air out of the
cartridge and then introduce the ink which is pulled in to replace the
vacuum. There are specialized devices made for this on the internet.

Some people use an old sock or salad spinner to have what when I was
young was referred to as centrifugal force (sorry don't want to get into
a long argument about false forces and inertia... not today, at least).
Anyway, if you point the ink outlet toward the outside (or course, make
sure it is well sealed! before spinning) the ink will tend to be pushed
toward the outlet and the air will tend to displaced and end up on the
top of the cartridge which is where it should be.

You can also store the cartridge on the ink outlet so the ink naturally
tries to displace the air, or you can just tap downward at the ink
outlet area the sealed cartridge on something to try to dislodge the air
pockets.

Lastly, most refillables today use spongeless cartridges which use a
labyrinth of channels and chambers to hold the ink from leaking out.
Some are easy to refill if so designed, usually using two access holes
that need to be resealed well before storing, other (like those made by
the printer manufacturers) will probably use a system of channels which
have to be filled in the correct order etc to get a full cartridge of
ink. Check the web to see who is supplying specific instructions.

Art

If you are interested in issues surrounding e-waste,
I invite you to enter the discussion at my blog:

http://e-trashtalk.spaces.live.com/

il barbi wrote:
> Does somebody know some trick for getting rid of air bubbles introduced by
> ink refilling? I've always sucked some ink from noddles and made several
> cleaning cycles but I still get white rows
> il barbi
>
>
From: RCC on 12 Jan 2010 09:07
In message <sGP2n.5141$%P5.2937(a)newsfe21.iad>, Arthur Entlich
<e-printerhelp(a)mvps.org> writes
>You can also store the cartridge on the ink outlet so the ink naturally
>tries to displace the air, or you can just tap downward at the ink
>outlet area the sealed cartridge on something to try to dislodge the
>air pockets.
>
>il barbi wrote:
>> Does somebody know some trick for getting rid of air bubbles
>>introduced by ink refilling? I've always sucked some ink from noddles
>>and made several cleaning cycles but I still get white rows
>> il barbi

Untried, but maybe worth a try, how about some form of vibration with
the outlet pointing down? Maybe leave it (the cartridge, not the whole
printer) on top of your washing machine during the spin cycle, a bit
violent, or use one of those sonic vibrating toothbrushes for a minute
or two to see if it persuades the air bubbles to rise?

Of course it could just turn it all to froth and make it worse!

Just leaving it (the right way up) overnight might help things along.
--
Richard C
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