The information from the link was very interesting, and in a way dye seems ideal for my usual daily printing activities.
The reason why I have asked this question, was due to a supplier contact email. The company advertises various refills for different models of Epson printers and CISS kits. For the Epson R220 and R300 they have taken new stock consisting of pigment ink, which they are now recommending. Some other Epson models are still being supplied with dye ink, and the seller seems to suggest pigment ink is the way forward.
Are not interchangeable. The heads being of a different design. So stick to what you have been using.
May I then take the liberty to move sideways every so slightly .
My R300 CISS is being a little troublesome, inso far that the Yellow has stopped printng and instead am getting what appears to be for want of another explanation back pressure. That is puddle of ink On Top Of the Tank.