Epson Stylus Pro 7900/9900 HDR UltraChrome Ink - 350ml - Green.

Epson has engineered the UltraChrome HDR (High Dynamic Range) pigment ink technology. While still retaining its key features, such as three-level black ink for superb grey balance, and smooth tonal gradations from shadow to highlight, UltraChrome HDR comprises several new important innovations that contribute to dramatically enhanced print and colour quality.