Scanner type: Flatbed & ADF scanner 600 x 600 DPI Colour scanning Duplex scanning LCD Built-in display A3 Scanning media types supported: Card stock, Envelopes, Labels, Photo paper, Plain paper Maximum scan size: 297 x 432 mm Sensor type: CIS USB port Ethernet LAN Power supply type: AC Internal memory: 3584 MB Built-in processor 1200 MHz Fast, smooth scanningeven unattended20.3 cm (8-inch) touch control panel with full pull-out keyboardSuperb paper-handlingThe new office workaholicHybrid digital send and PC connection modeTransfer scans fast into editable textFuture SmartHP OXPHP Web Jetadmin fleet managementEncrypted 500 GB HDDScanning, simplifiedRich auto-imaging and processing featuresEmbedded and advanced auto-imagingEasily manage digital documents Scanning Duplex ADF scan speed (b/w, A4) 240 ipm Duplex ADF scan speed (colour, A4) 240 ipm ADF scan speed (colour, A4) 120 ppm ADF scan speed (b/w, A4) 120 ppm Greyscale levels 256 Duplex scanning Yes Colour scanning Yes Optical scan