Appendix A Programming Guide
A-29
Start and Stop characters
For barcode types EAN, UPC, Code 93, Code 128 and Postnet the printer
automatically adds start and stop characters.
For barcode type Code 39, 2 of 5 industrial and 2 of 5 interleaved the printer adds
start and stop characters only if they are not generated by the system.
For barcode type Codabar the application has to generate the start and stop
characters.
Following start and stop characters are accepted by the printer:
Barcode Type Start Character Stop Character
Code 39 * *
2 of 5 types : ;
Codabar a, b, c, d, A, B, C, D t, n, *, e, A, B, C, D
Note: Following combinations (start / stop) are specified for Codabar, but not
checked by the printer:
(a / t) (b / n) (c / *) (d / e) (A / A) (B / B) (C / C) (D / D)
Error checking characters
Error checking characters are added by the printer only for barcode types Code
128, Code 93 and Postnet. For all other barcode types the application has to
generate error checking characters and transmit them to the printer.
Unprinted areas
To ensure proper readability of a barcode unprinted areas in front and behind the
barcode are required. The printer does not insert these areas itself; the amount of
space has to be calculated by the application.
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