Combine performance, energy efficiency, and the security with the HP LaserJet Enterprise MFP M634z Monochrome Multifunction Duplex Printer. Expect peace of mind from the world's most secure printing; this black and white laser printer is always on guard, continually detecting and stopping threats while centrally managing your fleet with ease. With print, scan, copy and fax versatility, a 9" color touchscreen control panel, print speeds of up to 55 ppm, and 5.2 seconds first page out time you get confidence to speed through tasks without interruption. Build business efficiency and accelerate workflow with 3 additional 550-sheet paper trays and a wheeled stand for a total 2300-sheet input tray capacity and 1,000-sheet 3-bin stapler/stacker with job offset. Extend your printing reach with Wi-Fi Direct® and Bluetooth® Low Energy connectivity, and help protect your monochrome printer and produce sharp text, bold blacks, and crisp graphics with Original HP Toner cartridges with JetIntelligence.