HP LaserJet Pro 400 MFP M425dw, LaserJet. Print technology: Laser, All-in-one functions: copy, fax, print, scan, Colour all-in-one functions: scan. Print speed (black, normal quality, A4/US Letter): 33 ppm, Duplex print speed (black, normal quality, A4/US Letter): 15 ppm, Duplex printing modes: auto. Maximum copy resolution: 600 x 600 DPI, Copier resize: 25 - 400 %, Maximum number of copies: 99 copies. Optical scanning resolution: 1200 x 1200 DPI, Maximum scan area: 216 x 297 mm, Scan type: Flatbed, 50-sheet ADF. Fax resolution: 300 x 300 DPI, Fax transmission speed: 3 sec/page, Modem speed: 33.6 Kbit/s