A4 - Print, copy, scan, fax , ADF , Duplex , Network . Print Up to 35/33 ppm ( letter/a4 ), print duplex 18 ipm (letter ) . Black (A4, ready): As fast as 7.2 sec , Black (best) Up to 1200 x 1200 dpi . Memory: 512MB ; Processor 800MHz. Copy up to 33 cpm, Up to 999 copies, 25% -400% , Scan : CIS , Flatbed, ADF, Up to 20/19 ppm (b&w), up to 9/8 ppm (color) for ( letter/A4) . Fax : 33.6 kbps (maximum), 3 sec per page . memory 500 pages . Tray : Paper input: 250-sheet input tray, Paper outt: 150-sheet output tray . Dispay : 2.7" CGD; Touch Screen , Recommended monthly page volume:350 to 2500 pages , Duty cycle Up to 50,000 pages . Conection :Hi-Speed USB device (compatible with USB 2.0 specifications); 10/100Mbps Ethernet. Supplies: HP145A W1450A (1700 pages ) or HP145X W1450X ( 3800 page )