HP LaserJet Enterprise M4555f MFP, LaserJet. Print technology: Laser, All-in-one functions: copy, fax, print, scan, Maximum duty cycle: 250000 pages per month. Print speed (black, normal quality, A4/US Letter): 52 ppm, Time to first page (black, normal): 9.5 s. Maximum copy resolution: 600 x 600 DPI, Copy speed (normal quality, black, A4): 52 cpm, Copier resize: 25 - 400 %. Optical scanning resolution: 600 x 600 DPI, Maximum scan area: 216 x 356 mm, Scan type: Flatbed. Modem speed: 33.6 Kbit/s, Fax broadcasting: 100 locations