User`s manual

A–14 Bar Codes
Codabar d/e
Codabar d/e has four dark bars and three light bars for a total of seven bars.
Both light and dark bars are coded to define the character. A narrow
light/dark bar is assigned a binary 0 and a wide light/dark bar is assigned a
binary 1.
Codabar d/e has the following characteristics:
• Character set includes ten digits (0 – 9) plus six characters (: / . + $ –)
• START and STOP codes
• No CENTER code
• Definable intercharacter gap
• Variable length characters per complete symbol
• If a checksum is required for bar code readability, you must include it as
part of the data.
EAN–8
EAN–8 contains two dark bars and two light bars for a total of four bars.
Each light and dark bar is 1 – 4 modules wide. A module is the smallest
increment that can represent data. Zeros are represented by light modules and
ones by dark modules. Each character contains some combination of seven
modules that total two dark bars and two light bars.
The above is always true except with the START/STOP and CENTER
character codes. The START/STOP character bar pattern consists of two dark
bars and one light bar for a total of three bars. The CENTER character bar
pattern has two dark bars and three light bar for a total of five bars.
Parameters P2 through P5 and P7 are not applicable and will be ignored.
EAN–8 has the following characteristics:
• Ten digit character set (0 – 9)
• START and STOP codes
• CENTER code
• Intercharacter gap not definable