Epson WorkForce Pro WF-7840DTWF 7840DTWF WF7840DTWF 7840DTWF WF7840 7840 - Multifunction printer - colour - ink-jet - A3 plus (311 x 457 mm) (original) - A3 (media) - up to 25 ppm (printing) - 550 sheets - 33.6 Kbps - USB 2.0, LAN, Wi-Fi(n), USB host