HP ScanJet Pro N4600 FNW1 Fast 2-Sided Scan & Auto Document Feeder & Wireless up to 40 ppm: Key SpecificationsScanner typeADF; CIS scanning technology; FlatbedScan resolution, opticalUp to 600 dpi (color and mono, ADF); Up to 1200 dpi (color and mono, flatbed)Bit depth24-bit (external), 48-bit (internal)Duty cycle (daily)Recommended daily duty cycle: 6000 pagesAutomatic document feeder cap