Xerox 6180N Generic MICR Fundamentals Guide - Page 81
Processing speeds
UPC - 095205425307
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Document processing Hybrid magnetic and optical reader sorters Hybrid reader sorters use two read technologies: • Magnetic waveform recognition • Optical character recognition Compared to other types, hybrid reader sorters have very high accuracy rates, because they interpret and compare the results produced by the magnetic waveform recognition and the optical character recognition. If a character cannot be interpreted by MICR waveform analysis, the system takes the results of the optical recognition. In diagnostic situations, understanding the recognition mode is important. Another form of hybrid equipment, used primarily in lock box and remittance processing, uses optical and magnetic recognition in a fundamentally different way that can cause problems with MICR documents. These reader sorters process an OCR printed turnaround document, followed by a MICR printed check. They identify a check by the presence of magnetic ink, then switch to a MICR font recognition system. If the turnaround document is printed with an OCR font but uses MICR ink, it may be misidentified and rejected, although the OCR font is properly printed. Processing speeds Reader sorters are available in a variety of sizes and processing speeds. The smallest can fit on a desk top; the largest may be the size of a mainframe computer. Performance may be categorized as low, medium, or high speed. The speeds may be defined as follows, based on the speed of handling a 6 inch/152 mm long document: Low speed: Process 100 to 750 documents per minute. These machines are usually found in small banks or are used for handling small volumes of checks. They use waveform recognition. NOTE: Proofing devices also process documents at these speeds. Although these devices can operate in reader sorter mode, they may not have automatic document handlers and require manual hand feeding. Generic MICR Fundamentals Guide 5-7