Xerox WorkCentre 5638V SN. Print technology: Laser, All-in-one functions: copy, Maximum resolution: 1200 x 1200 DPI. Print speed (black, normal quality, A4/US Letter): 38 ppm, Time to first page (black, normal): 4.6 s. Maximum copy resolution: 600 x 600 DPI, Copy speed (normal quality, black, A4): 38 cpm. Maximum print size: A3 (297 x 420 mm). Standard interfaces: RJ-45