HP PRO M425DN LaserJet MFP 2 Sided Network Printer Total Prints Under 23k Toner cartridge not included. Print, copy, scan, fax Print speed letter: Up to 35 ppm (black) Auto duplex printing; 2 paper trays (standard) Monthly duty cycle Up to 50,000 pages Duty cycle is defined as the maximum number of pages per month of imaged output. This value provides a comparison of product robustness in relation to other HP LaserJet or HP Color LaserJet devices, and enables appropriate deployment of printers and MFPs to satisfy the demands of connected individuals or groups.