Lexmark MS610dte (35ST550) Duplex 1200 dpi x 1200 dpi USB mono Laser Printer Output Capacity, std.: Up to 250 pages 20 lb or 75 gsm bond Black Print Quality: 1200 x 1200 dpi Part Number: 35ST550 Functions: Print Display: Lexmark e-Task 4.3-inch (10.9 cm) color touch screen Time To First Page (seconds): As fast as 6.5 seconds Emulations: PCL 5e Emulation PCL 6 Emulation Personal Printer Data Stream (PPDS) PostScript 3 Emulation Direct Image Microsoft XPS (XML Paper Specification) AirPrint PDF 1.7 emulation Duplex printing: Automatic