Review on Ultra-High Capacity EPSON T502 EcoTank Ink Bottle In Black (T502120-S) - Compatible With Selected Epson EcoTank Printers by Kody Bradley

Epson is rather mysterious as to the composition of their new Eco Tank inks - nothing is mentioned either on the bottles, the packaging or their website. You won't find a host of reviews on the 'net either - just mention of their previous inks - DURABrite and Claria, for example, both excellent inks, pigment-based and dye-based respectively. Both types have advantages, and both are fairly permanent and archival inks - Claria is in fact a high end photographic ink, in spite of being dye-based (the most common variety of ink in desktop inkjet printers).Sorting out multiple reviews and comments from Epson representatives, it appears that the 502 series uses a combination of both ink types - dye-based for color, and pigment-based for black. And the result is actually excellent - for routine printing, text is clear and colors are vibrant, with very little smearing, feathering or blurring when wet for either black text or color graphics on plain paper. Water resistance of color photos on Epson photographic paper (semi-gloss or gloss) is outstanding (personal test). Fading or UV resistance remains to be seen (their DURABrite pigment ink is rated archivally for over 100 years), but these appear to be quality inks, very reasonably priced (remarkably compared to cartridges), and very easy to refill in an Eco Tank printer. Highly recommended.