
Operator
’s Guide
Appendix K
002-7858
RJS, Minneapolis, MN
57
Parity
A system for encoding characters as
“odd” or “even” for self checking of barcodes.
Peak
The graphical pattern on a scan reflectance profile which looks like an upside down
“U” or “V.”
Within a profile a peak represents a space. One or more peaks could also be found within an
element representing a reflectance change within an element.
Plaque
A template used as a reflectance calibration standard (RCS). The known reflectance values are
posted on the back of the plaque.