Up to 250 mixed-size documents can be stacked together in the automatic feeder. There is no need to organise documents according to their size so scanning is fast easy and efficient. A prescan and post-scan imprinter is also available for the Xerox® DocuMate 4799 and is supported through the included TWAIN™ and ISIS® drivers.The Xerox® DocuMate 4799 provides both high quality image enhancement and increased productivity with Kofax® VRS™ Professional AIPE-EBC for auto-everything scanning – together they provide a winning combination which translates into real and measurable savings – fewer manual steps reduced storage requirements and less operator intervention.The Documate 4799 also employs a device-independent colour space that is compatible with the Xerox® iGen™ digital press so that you can be assured that the colour fidelity of your original translates to the output of your real time digital press.The functional style of the Xerox® DocuMate 4799 enables very easy maintenance as the clamshell design allows full easy access to the entire paper path so clearing paper jams or cleaning of the unit can be done easily without a service engineer. The rollers are also easy to replace which improves the overall cost-effectiveness and life span of the product. Versatility high-speed and superior reliability make the Xerox® DocuMate 4799 a powerful scanner for demanding environments. With a duty cycle of up to 40 000 pages per day this innovative workhorse scans at speeds of up to 100 ppm and employs three advanced sensor systems; ultrasonic double feed detection stapled document detection and intelligent feed control to ensure that your scan job will not get interrupted.Documents of various sizes can all be stacked together in the automatic feed tray with confidence because the Xerox® DocuMate 4799 employs three ultrasonic double feed detection sensors to cover the entire width of a document. The scanner also has another set of sensors designed to detect staples anywhere in document. As soon as a staple is detected the scanning process is stopped – minimising damage to the optical glass and your documents.The DocuMate 4799 also features Intelligent Feed Control which means that multiple sensors are constantly checking the paper feed condition and automatically adjusts the roller pressure to ensure that documents of varying thickness are fed accurately making it more accurate and reliable than conventional feed mechanisms. This combination of sensors creates one of the most reliable feed mechanisms available today.