How can I save on ink costs?
My Epson Stylus Photo 2400 inkjet sucks up a lot of expensive ink.
I don't want to use another brand of ink in that printer because I need
the ink to be archival.
If you want top image quality your printer is going to use
appoximently 1.5-2mls of ink per square foot. That is just how it is.
Yes you will save money by going to a third party ink, but as you said
then you don't know what the longevity of the ink is. Epson K3 ink in
Wihelm tests went from 100-200+ years depending on the paper and
storage conditions. Wihelm's standards and testing procedures are very
public, but I don't see any 3rd party inks doing them except for MIS.
Conservators will always argue over what should be called "archival",
is it a document that will last 100 years with minor care or a
document that lasts 1000 years. Paper also has a function in the
longevity of a print, RC papers are expected not to last as long as
pure fiber based papers, but Wilhelm has said there is no easy way to
test this, but he also has said he expects most RC papers to fall
apart in 50 years or so, so much for the longevity of the ink. So
archival is not a great term.
One way to save money is to go to a 17 inch printer, inks because of
the volume of ink you buy, it ends up being about 1/2 the price of ink
for 13 inch printers. You pay though for the higher price of the
printer and because of their high volumes the price of the cartridges.
It is nice to only have to buy ink once a year if you are a home user.
17 inch printers are also better built than the 13 inch models.
I am currently using a Canon iPF5000 at home and an HP B9180 at work,
I have owned Epsons in the past and have used Epsons with 3rd party
inks, so my experience here covers a lot of areas.
Tom