HP LaserJet Pro 400 MFP M425dn, 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, Time to first page (black, normal): 8 s. Maximum copy resolution: 600 x 600 DPI, Copy speed (normal quality, black, A4): 33 cpm, Copier resize: 25 - 400 %. Optical scanning resolution: 1200 x 1200 DPI, Maximum scan area: 216 x 297 mm, Scan type: Flatbed & ADF. Fax resolution: 300 x 300 DPI, Fax transmission speed: 3 sec/page, Modem speed: 33.6 Kbit/s