User guide

Bar Code Printing on the LA600 MultiPrinter
20.7 Characteristics of the Supported Bar Code Styles
20.7.4 Codabar
The bar code styles Codabar a/t, Codabar b/n, Codabar c/*, and Codabar d/e all
share the following characteristics:
• A check digit, though not required, can be calculated if needed by the
application based on modulo 10 weighted by 3.
• The recommended ratio of wide to narrow elements is 2.5, though the ratio
can range from 2.0 to 3.0.
• Minimum symbol height is 25% of symbol length—at least 20 millimeters.
• Minimum quiet zone width is 10 times the width of the narrow element.
20.7.5 EAN 8
In bar code style EAN 8, bar code symbols are structured as follows:
• First digit is the code for this bar code style.
• Next six digits are the data.
• Final digit is the check digit. (For an illustration of its calculation, refer
to Figure 20–7. While this figure provides an example of check digit
calculation for an EAN 13 bar code symbol, EAN 8 takes exactly the same
approach.)
The first four digits are coded to the left of the Center code in odd parity, and
the final four are coded to the right in even parity.
The bar code symbol is ignored if more or fewer characters are used or if any
are illegal. In publishing applications, however, two or five digits may be added
to the basic eight. In these applications, when the data is equal to 10 or 13
digits, the additional digits are encoded automatically and are not considered
in the calculations for the check digit.
EAN 8 bar code symbols are printed in three sizes, each of which requires a
different minimum quiet zone, as shown in the table below. While the symbol
height is thus variable, it should be about the same as the symbol length.
Symbol
Size Minimum Quiet Zone
SC3 0.1023"
SC6 0.1417"
SC9 0.1850"
20–24 Bar Code Printing on the LA600 MultiPrinter