Wasp Bar Code WPS100 Manuale Utente

Glossary-6

A pattern of bars and spaces that provides the scanner with start and 
stop reading instructions and scanning direction. The start and stop 
characters are normally to the left and right margins of a horizontal 
code.

A foundation material on which a substance or image is placed.

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.

The ratio of symbol height to symbol width.

The distance between the outside edges of the quiet zones of the first 
row and the last row.

 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.

The structural rules and conventions for representing data within a 
particular bar code type (e.g. UPC/EAN, Code 39).

Allowable deviation from the nominal bar or space width.

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.

A solid state device which produces visible laser light.