The AV3850SU is the document scanner capable of simplex/duplex scan. With built-in auto-document feeders, the AV3850SU scanners are extremely efficient in performing duplex scan for a stack of double-sided documents. In simplex (one-sided) scan mode the AV3850SU scan up to 50 pages per minute, and in duplex (double-sided) mode, 100 images per minute. The auto-document feeder of the AV3850SU has a cavernous capacity of 50 sheets. All these features make these scanners an essential part of every digital office. The AV3850SU is the document scanner capable of simplex/duplex scan. With built-in auto-document feeders, the AV3850SU scanners are extremely efficient in performing duplex scan for a stack of double-sided documents. In simplex (one-sided) scan mode the AV3850SU scan up to 50 pages per minute, and in duplex (double-sided) mode, 100 images per minute. The auto-document feeder of the AV3850SU has a cavernous capacity of 50 sheets. All these features make these scanners an essential part of every digital office. Please do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games. Note: Try to set a system restore point before installing a device driver. It will help you restore system if installed driver not complete.