HP ScanJet Pro 3600 F1 Fast 2-Sided up to 30 ppm Scanning & Auto Document Feeder: 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: 3000 pages (ADF)Automatic document feed