Epson Photo 700 Head Autopsy: Bleeding Nozzle

[Alan Smithee]

OK. My Epson Photo 700 finally bit the dust -- for good. Probably a
blessing. Stopped jetting ink completely after long period of no use. I
tried Windex on the pad. No dice. I opened the hood and pulled the head.
What I saw puzzled me. There was a drop of ink almost hanging off the head
in the first pin position under the black head. Almost as if that nozzle was
wider. Blown out. There was also a "ring" circling that nozzle by 2 or 3 mm.
Corrosion I'm guessing. It ran on non-epson inks for some time after the
warantee period ended and had sat idle for some time before my attempted
revival. Could this "bleeder hole" be caused by Windex? Nothing was ever
forced into the head as far as I know. Definately looks damaged in my
opinion. Could something have rubbed it or hit it? The hole looks too
perfect for that. Could it have been popped by suction in the head somehow?
Thx for listening. Thoughts?

 

[Yianni]

What I saw puzzled me. There was a drop of ink almost hanging off the head

in the first pin position under the black head. Almost as if that nozzle
was
wider. Blown out. There was also a "ring" circling that nozzle by 2 or 3
mm.
Corrosion I'm guessing. It ran on non-epson inks for some time after the
warantee period ended and had sat idle for some time before my attempted
revival. Could this "bleeder hole" be caused by Windex? Nothing was ever
forced into the head as far as I know.

You are right, corrosion from the type of ink you use. I have seen the same
on the yellow nozzles. The holes seems wider, and the color is white around
the holes. Don't forget, some milions or trilions droplets passed through
the nozzles.

Definately looks damaged in my opinion.

The printhead isn't damaged because the nozzles are wider. I suspect it
continuous working. I suspect that the problem you had, caused from a faulty
black(?) cartridge that it leaks. The leakage cover the printhead plate,
causing the droplets not firing into the paper (just a thought).

 

[Arthur Entlich]

Without seeing the head or good images of it, I can't even guess. I
very much doubt the Windex did anything to damage the head.

Is it possible this ring is just dried ink? Can you really ascertain
the hole is substantially bigger than others?

Art