Waveform Generation - Xerox 6100BD - Phaser Color Laser Printer Fundamentals

Document processing

Waveform generation

5-4
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.
Generic MICR Fundamentals Guide