The innovative design of the Panasonic KV-S4065CW Sheetfed Scanner is extremely effective when the media you're scanning is a mix of paper of different thickness or weights. Thanks to ToughFeed from Panasonic, the optimum reliability of the Panasonic KV-S4065CW is assured even when scanning high-volume documents. A compact yet rugged design ensures durability and reliable paper handling. With up to a 30,000 page per day scanning duty cycle that's at the top of its class, this versatile high-speed scanner provides the extra performance required for heavy scanning demands, easily handling a wide range of paper weights from 5.5lbs to 55.6 lbs. The Stapled Document Detection virtually eliminates stapled documents from being fed, the double-feed prevention system employs an ultrasonic sensor that detects the double feeding or originals during scanning and the Load Detection circuit allows the document hopper to automatically adjust its position to ensure reliable paper feeding.