HP Scanjet N6310

Scanner type : Flatbed, ADF 
Scan resolution, optical : Up to 2400 dpi
Daily duty cycle : Up to 500 pages
Bit depth : 48-bit
Levels of grayscale : 65536
Multifeed detection : Yes, length
Automatic document feeder capacity : Standard, 50 sheets
Automatic document feeder speed : Up to 15 ppm/6 ipm(using HP Scanning Software)
Task speed : OCR Letter/A4 to PDF file ;less than 34 sec (editable text)
less than 40 sec (searchable PDF), PDF to e-mail: less than 38 sec
10 x 15 cm (4 x 6 in) color photo to file : less than 25 sec
Scan size, maximum (flatbed) : 8.5 x 11.5 in
Scan size, maximum (ADF) : 8.5 x 14 in
Scan Size Minimum (ADF, imperial) : 5.8 x 5.8 in
Media types : Paper (plain, inkjet, photo), envelopes, cards
Scan file format : PDF, searchable PDF, JPG, BMP, TIFF,
compressed TIFF, TXT, HTML, RTF, FPX, PNG, PCX, GIF
Compatible Operating Systems : Microsoft® Windows® 7,
Vista®, XP(32-bit and 64-bit),2000,Mac OS X v10.4.11, 10.5, 10.6