I have always been a great fan of using ink from other sources than Epson for my Epson printers. I fully accept that, for photographic purposes, they may fade under bright sunlight faster than the products supplid by the printer manufacturers, but why? Originally, it was only possible for cartridges from the printer manufacturers to be used. As soon as the magnitude of the rip-off was discovered and a marketing opportunity created, ink and cartridges at much more sensible prices became available. Is it only the printer manufacturers who have access to "low fade" ink? Surely not, yet no supplier out there, be it a bulk supplier or cartridge one is promoting a more expensive, "fade free" ink. Might this be a case of the printer manufacturers trying to find any lame excuse to justify their exhorbitant prices?
I await the results of SD's investigations with interest.
P.P.