Mono laser printer resolution 4800 x 600 dpi printing size in din a4 max print size 216 x 356 mm connections usb 20 ethernet 10100 wlan functions network ready wifi direct iprint mopria google cloud print apple airprint nfc near field communication print function duplex printing print speed bw 28 pagesmin series samsung xpress paper feed devices single sheet feeder paper tray number of paper trays 1 paper feed types retractable paper tray fron