Epson 890 nozzle deformation

[H.Henkler]

Hello,
some months ago I was asking for a way to fix the magenta nozzle "deformation" as being
shown in the picture:

http://www.henkler.de/magbug.jpg

The number of "wrong" magenta nozzles has increased since. I removed the printing head
and immersed the nozzle surface in an aqueous ammonia liquid (1 mm deep) for some hours
in order to dissolve any residues. No change.

Wouldn´t it be a good idea to flush just the magenta nozzles by printing a large number
of all magenta sheets, e.g. by filling an Excel table with magenta background and
printing many pages.
If this doesn´t help, refill the magenta section with diluted ammonia water (add some
detergent ?) and carry on with printing magenta pages. This procedure, however, makes
sense only to those who are refilling cartridges.
Art, ever tried this?

Herb Henkler

 

[Harvey]

Hello,
some months ago I was asking for a way to fix the magenta nozzle
"deformation" as being
shown in the picture:

http://www.henkler.de/magbug.jpg

The number of "wrong" magenta nozzles has increased since. I removed the
printing head
and immersed the nozzle surface in an aqueous ammonia liquid (1 mm deep)
for some hours
in order to dissolve any residues. No change.

Wouldn´t it be a good idea to flush just the magenta nozzles by printing a
large number
of all magenta sheets, e.g. by filling an Excel table with magenta
background and
printing many pages.
If this doesn´t help, refill the magenta section with diluted ammonia
water (add some
detergent ?) and carry on with printing magenta pages. This procedure,
however, makes
sense only to those who are refilling cartridges.
Art, ever tried this?

Herb Henkler

I have a similar problem with my old Epson 460. I tried removing the heads,
soaking in various liquids, flushing water/cleaner through the jets and
kicking it a few times - none of which made any difference. I gave up in the
end and decided it was more hastle and it was worth.

 

[Harvey]

I gave up in the end and decided it was more hastle and it was worth.

That should be 'more hastle THAN it was worth.'

 

[Miss Perspicacia Tick]

That should be 'more hastle THAN it was worth.'

No, it should be more '*hassle* than it was worth' ;o)

 

[Arthur Entlich]

Probably should be "most hassle than it was worth" ;-)

Art

 

[Arthur Entlich]

I have a few comments. I do not recommend removal of the head. In
general any success you will have with cleaning using ammoniated cleaner
will work as well with the head installed as not, and removal can lead
to other problems. Some people drown the head and end up shorting it,
some move the manual alignment adjustments which are not easy to return
to the correct location without a propriety program from Epson which
fires the nozzles in a special manner so you can see which way to move
the head.

To answer you question, yes, I suggest people make up cleaning
cartridges and place them on the heads that are problematic, and yes,
suggest printing purging pages while using those cartridges.

I don't suggest using full strength household, and certainly not full
strength industrial ammonia. Better to use a mix of 1 part household
ammonia to 10 parts water. I do not suggest using a detergent, but
alcohol can sometimes help as both a surfactant and a drying agent.

In the manual there is a test to do to make sure the ink and cleaning
are compatible.

Normally, I suggest an ammoniated window cleaner, which is available in
north america, but may not be in Europe. This produce, and the copies,
have glycol, alcohol and ammonia in them, and are the perfect solvent
for inkjet ink in most cases.

Art

 

[Harvey]

No, it should be more '*hassle* than it was worth' ;o)

You're just using the wrong dictionary. 'Hastle' is a sort of mix of hustle
and hassle with a bit of haste thrown in. Just slight differences in
meaning, but that's the beauty of the English language.

 

[Arthur Entlich]

Remind me to never play Scrabble with you ;-) I think you printed your
own dictionary!

Art