Xerox 6180N Generic MICR Fundamentals Guide - Page 78
change in flux as the character between A and B passes
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Document processing Waveform generation All types of reader sorters react to any magnetic material in the clear band, intentionally placed on a document or not. Reader sorters read from right to left and the magnetized ink generates a waveform. The following figure illustrates the process. Figure 5-1. On-Us symbol waveform reading First, the character is magnetized by the reader sorter. Then, as the character passes the read head, edge A generates a change in magnetic flux, producing peak A of the waveform. There is no change in flux as the character between A and B passes the head. As edge B passes the head, a change in flux is sensed producing peak B of the waveform. This continues through edges C, D, E, and F, producing the entire waveform. 5-4 Generic MICR Fundamentals Guide