The OfficeJet Pro 7720 features a Thermal Inkjet technology which allows you to print a document of up to 11.7 x 17" size and print in vibrant colours at up to 4800 x 1200 dpi resolutions and at ISO speeds of 18 ppm in colour and 22 ppm in black, with a draft mode available at speeds of 34 ppm. Furthermore, it features a flatbed or a 35-sheet ADF with an optical resolution of 1200 dpi available for scanning, copying, and faxing at sizes.