Epson Stylus Pro 4800 Review at TrustedReviews
TrustedReviews have a good review of the large format Epson 4800 printer which uses the UltraChrome K3 inkset.
“‘Print quality on plain or photo paper, is very good. Black is dense and full, with the two supporting ‘light black’ inks, or as we techies call them, ‘greys’, providing smooth gradations of tone. When printing large format pages, costing on the basis of 20 per cent of an A4 page isn’t appropriate. We don’t think Epson’s basis for costing a photo print, 40 per cent of a page, is that realistic either. If you’re going to spend this kind of money on a printer, you’re going to be covering most of each page you print with ink – 80 per cent would be a more realistic average.”