Quality control
Generic MICR Fundamentals Guide
6-17
Signal strength
Signal strength or level is the relative ability of magnetic ink
characters to generate a signal in an electromagnetic sensing
device. The signal strength is a percent of a nominal value for
each character. The ANSI specification is 50% to 200% of the
nominal specified peaks signal for each character.
NOTE: Under normal conditions, the signal strength of a Xerox
MICR printing system does not require measurement unless
some degradation of MICR quality is observed during inspection.
Information on MICR signal level measurement is provided here
for those customers who have access to magnetic signal
strength test equipment.
As a document passes over the read head of the reader sorter,
the magnetized particles in the MICR ink cause a flux change
within the windings of the read head, changing the output
voltage. This voltage passes through an amplifier and is
translated into readable signals that can be recognized and input
to a computer. Each MICR character has a nominal signal
strength and wave shape. If the level is either too high or too low,
the reader sorter is not able to properly identify the characters.
Summary of Contents for 6100BD - Phaser Color Laser Printer
Page 1: ...January 2003 701P22140 Xerox Document Services Platform Generic MICR fundamentals guide...
Page 17: ...Overview Generic MICR Fundamentals Guide 1 7 Figure 1 2 Life cycle of a check...
Page 22: ...Overview 1 12 Generic MICR Fundamentals Guide...
Page 46: ...Paper facts 3 18 Generic MICR Fundamentals Guide...
Page 74: ...Document design 4 28 Generic MICR Fundamentals Guide...
Page 86: ...Document processing 5 12 Generic MICR Fundamentals Guide...
Page 105: ...Quality control Generic MICR Fundamentals Guide 6 19 Figure 6 12 E13B characters and waveforms...
Page 146: ...Security 8 18 Generic MICR Fundamentals Guide...
Page 150: ...References A 4 Generic MICR Fundamentals Guide...
Page 164: ...Glossary Glossary 14 Generic MICR Fundamentals Guide...