HP LaserJet Pro M1536dnf Multifunction Printer, LaserJet. Print technology: Laser, All-in-one functions: copy, fax, print, scan, Maximum duty cycle: 8000 pages per month. Print speed (black, normal quality, A4/US Letter): 25 ppm, Duplex printing modes: auto, Time to first page (black, normal): 8.5 s. Maximum copy resolution: 600 x 600 DPI, Copy speed (normal quality, black, A4): 25 cpm, Copier resize: 25 - 400 %. Optical scanning resolution: 1200 x 1200 DPI, Maximum scan area: Legal (216 x 356), Scan type: Flatbed & ADF. Fax resolution: 300 x 300 DPI, Fax transmission speed: 3 sec/page, Modem speed: 33.6 Kbit/s