HP LaserJet Enterprise Flow LaserJet Enterprise M635z Multifunction Black and white Printer, Ethernet Only; Copier, Scanner. Print technology: Laser, Printing: Mono printing, Maximum resolution: 1200 x 1200 DPI. Copying: Colour copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Colour scanning, Optical scanning resolution: 600 x 600 DPI. Faxing: Colour faxing. Duplex functions: Print, Copy, Scan. Maximum ISO A-series paper size: A4. Direct printing. Product colour: Black, White_x000D_ Scan to email; Two-sided printing; 150-sheet ADF; Energy Efficient; Strong Security_x000D_ Print, copy, scan, fax_x000D_ Print speed up to 65 ppm (black)_x000D_ Up to 1200 x 1200 dpi