Ultra Chrome XD2 pigment inks which mean your prints are smudge & water resistant Also, the SC-T3100 & SC-T5100 Series deliver deep blacks and crisp, dense lines particularly ideal for technical graphics. Epson offers a choice of ink cartridge sizes for the SC-T3100 series that help to keep costs down and are hassle-free to replace allowing you to control your overheads and productivity. All Epson ink cartridges are recyclable. The Sure Color SC-T Series printers integrate seamlessly into your workflow, with our easy print application or using the optional Adobe Post Script 3 module (for the higher end models) supporting PDF, JPEG and TIFF formats. You can also print from CAD files and a wide variety of desktop publishing applications and design software packages.