Xerox Phaser 3020BI Black & White Laser Printer, A4, 21 ppm (letter) / 20 ppm (A4), 128MB, 600MHz 600 x 600 dpi, Up to 1,200 x 1,200 Enhanced Image Quality,USB 2.0, Wi-Fi b/g/n,FPOT as fast as 8.5s, Duty Cycle up to 15,000 pages/month,Main Input-150 Sheets, Manual Feed Slot-1 Sheet, Output-100 Sheets