The HP OfficeJet Pro 7740 printer is a wide-format, all-in-one inkjet printer designed for professional, high-quality color printing up to A3 size. It features printing, scanning, copying, and faxing capabilities at speeds of up to 22 pages per minute (black) and 18 pages per minute (color). Key features include automatic duplex printing, a 35-sheet automatic document feeder (ADF), two 250-sheet paper trays, and mobile/wireless printing. The printer is working but is missing ink.