Wasp Bar Code WLS 8400 ER Symbol Aspect Ratio, Symbol Density, Symbol Height, Symbol Length

GL-14WLS 8400 Product Reference Guide

Symbol	A scannable unit that encodes data within the
	conventions of a certain symbology, usually
	including start/stop characters, quiet zones, data
	characters, and check characters.
Symbol Aspect Ratio	The ratio of symbol height to symbol width.
Symbol Density	The number of data characters per unit length; usually
	expressed as characters per inch (CPI).
Symbol Height	The distance between the outside edges of the quiet
	zones of the first row and the last row.
Symbol Length	Length of symbol measured from the beginning of
	the quiet zone (margin) adjacent to the start character
	to the end of the quiet zone (margin) adjacent to a stop
	character.
Symbology	The structural rules and conventions for representing
	data within a particular bar code type (e.g. UPC/
	EAN, Code 39).
Tilt	Rotation of a bar code symbol on an axis
	perpendicular to the substrate.
Tolerance	Allowable deviation from the nominal bar or space
	width.
2-dimensional (2D) symbology	A machine-readable symbol which must be examined
	both vertically and horizontally to read the entire
	message. A 2D symbol may be one of two types of
	machine-readable symbols: a Matrix Symbol or a
	stacked symbol. 2D symbols differ from linear bar
	codes with the ability for high data content, small
	size, data efficiency and error correction capability.
UCC	Uniform Code Council: the organization that
	administers the U.P.C and other retail standards.
UCC.EAN-128	Code 128 with a Function 1 character in the first
	position that is the symbology used with the
	UCC.EAN format for a universal product number
	(UPN).
UPC	Universal Product Code. A relatively complex
	numeric symbology. Each character consists of two
	bars and two spaces, each of which is any of four
	widths. The standard symbology for retail food
	packages in the United States.