snip
The only reason
this is even important is that Epson heads can develop air locks if
the cartridge is run to empty making it difficult to restart the ink
flow.
Instead of spending so much money and engineering time on coming up
with ways of trying to stop people from refilling the cartridges, or
from being able to source 3rd party product, they could have spent the
efforts fixing the air lock and potential clogging problems.
Ah, yes, the old air lock problem. My in-laws tried to get all the ink
they could out of their CX5200 ink cartridges. They let the yellow run
dry, and when they replaced it, nothing would print yellow. They
performed enough cleaning cycles trying to get the thing to work again
that they used up most of the cyan and magenta, too. The machine was a
month out of warranty, so they junked it and bought a CX6400. They
won't let this one run dry.
They had a full set of unopened OEM CX5200 inks that they bought months
ago. When the CX6400 needed its first black cartridge replacement, they
assumed they could use the CX5200's cartridges in the CX6400. Nope.
BTW, any idea why the CX6400 takes so long to print? That is, from the
time you hit print to the time it starts printing, it takes about 10
seconds, even with simple text documents. All settings are the same,
factory default, as were with the CX5200, whose time to print was fast.
In Epson's defense, I will say that they are good on their warranties.
While their CX5200 was still under warranty, the scanner stopped
working. One call to Epson to troubleshoot, and Epson determined it
was hardware related. They sent out a new CX5200 in two days (it had
all new inks), freight paid.
Bruce