HP LaserJet Enterprise M636z Laser Multifunction Printer-Monochrome-Copier/Fax/Scanner-75 ppm Mono Print-1200x1200 dpi Print-Automatic Duplex Print-300000 Pages-3200 sheets Input-600 dpi Optical Scan-Wireless LAN-Mopria-Wi-Fi Direct - Copier/Fax/Printer/Scanner - 75 ppm Mono Print - 1200 x 1200 dpi

HP LaserJet Enterprise M634z Laser Multifunction Printer-Monochrome-Copier/Fax/Scanner-55 ppm Mono Print-1200x1200 dpi Print-Automatic Duplex Print-300000 Pages-2300 sheets Input-600 dpi Optical Scan-Wireless LAN-Mopria-Wi-Fi Direct - Copier/Fax/Printer/Scanner - 55 ppm Mono Print - 1200 x 1200 dpi