Xerox Phaser 5550/DN Monochrome Laser Printer Output Capacity, std.: 500 sheets Black Print Quality: 1200 x 1200 dpi Cartridges Compatible: 106R01294 Part Number: 5550/DN Time To First Page (seconds): As fast as 6.5 seconds Print Languages, std.: Adobe PostScript 3, PCL 5e emulation, PCL 6 emulation, PDF, PDF direct Duplex printing: Yes Max. Duty Cycle: Up to 300,000 pages monthly