RJS Inspector D4000 Laser (FIRMWARE version A.05 and Earlier) - Manual (Page 80)

Appendix K Operator ’ s Guide
RJS, Minneapolis, MN 002-5568 74
Truncation
Decreasing the length of the bars in a barcode symbol below the normal specification.
Truncation decreases a symbol’s omni-directional readability and should be avoided.
Valley
The graphical pattern on a scan reflectance profile which looks like a “U” or “V.” With-
in a profile a valley represents a bar. One or more valleys could also be found within an
element representing a reflectance change within an element.
Vertical Redundancy
The availability of more than one scan path through a barcode symbol.
Visual Measurement
Measurements obtained by using human vision in the determination of characteristics of
the barcode symbol.
Void
White or light reflective area in a bar caused by a printing error that can cause a bar to
scan as a space.
Wide/Narrow Ratio
Ratio of narrow to wide elements.
X Dimension
The intended width of the narrow elements dictated by the application and/or symbology
specification.
Zero Suppression
Technique used to shorten UPC symbols by omitting zeros from the barcode.