The Plustek SmartOffice PS456U can scan truckloads of documents, efficient, without paper jams, misfeeds (Roller Friction Module!!!), serving the needs of a department hence an extraordinary need for digitizing docs.
Amazon.com: Plustek SmartOffice SC8016U High Speed Departmental A3 Document Scanner, 100 Page ADF, 80ppm, Instant on : Office Products
Plustek SmartOffice PS3060U Scanner - CopyFaxes
Plustek SmartOffice PS281 Flatbed Scanner for sale online | eBay
Plustek SmartOffice PL806 8ppm Color Simplex 8.27x11.69"