Product Detail Prints up to 32ppm monochrome output Automatic duplex printing for two-sided documents Up to 1200 x 1200 dpi resolution 300-sheet standard paper capacity, expandable 50-sheet capacity multi-purpose tray for envelopes . The "Brother HL-5340D High Speed Laser Printer with Duplex" is best product for you. We recommended Brother HL-5340D High Speed Laser Printer with Duplex