EAN 13
235
EAN 13
The EAN 13 bar code structure is shown in Figure 12 and described below.
Figure 12. EAN 13 Structure
Quiet Zone
Quiet zones extend on both ends of the bar code to permit the code to permit
the scan to begin and end in a blank area. You are responsible for providi ng
sufficientspace (minimum of seven modules)on the form for the quiet zones.
The number system character is also printed automatically in the left quiet
zone.
Start/Center/Stop Codes
The start/center/stop codes are special character codes marking those
portions of the bar code. These codes are automatically provided.
Number System Character
The number system character field allows you to provide a code to a class or
type of item. The first character in the data field is used as the number system
character.
Data Field
The bar code symbol uses a series of varying width bars and spaces to
represent a limited character set (numbers 0-9 and Special Characters St art,
Center,and Stop). The bars and spaces vary in width from one throughfour
modules. Each character consists of two bars and two spaces that total seven
modules. The symbol coding of the left data field is different from the rig ht
data field to permit read direction sensing.
Readable Data
The human readable data field provides a readable interpretation of the bar
code data. It can be either be suppressed or printed above or below the bar
code symbol.
QUIET
ZONE
STARTCODE CENTERCODE STOPCODE
LEFTDATA
FIELD RIGHTDATA
FIELD HEIGHT
QUIET
ZONE
OPTIONALREADABLE
SR,SC
POSITION
N
NUMBER
SYSTEM
CHARACTER
DATAFIELD
2-or 5-
DIGIT
ADD-ON
CODE
CHECK
DIGIT
FIELD