Scanners used for high-speed streaming digitization of ultra-large amounts of unstitched documents up to A3 format. Such scanners have no load limits, can work in 24×7 mode, have a well-developed management system, built-in mechanisms for primary processing of electronic copies of documents and specialized software for further processing of electronic copies from the developers of such scanners. The scanning speed of such scanners reaches 300 sheets per minute with a resolution of 300 dpi, a color depth of 24 bit and a dynamic range (D) of up to 3.9. The cost of such scanners starts from $100,000.