CognitiveTPG DLXi - Manual (Page 297)

Chapter
Revision F, January 2012, CognitiveTPG 288
10
Bar Code Information
All rules of bar code symbologies must be followed when creating bar
code commands. Some of the rules for the most commonly used bar
code symbologies are listed below. For more information on bar codes
as supported in CognitiveTPG printers, refer to the
BARCODE
command description and Table 4, Printer bar code support.
Uniform Product Code (UPC)
The Uniform Product Code (UPC) family of codes are typically used for
product identification, and include UPCA, UPCA+, UPCE, and
UPCE1. These are numeric codes only, supporting the characters 0
through 9. All UPC codes start with a number system digit that
identifies the type of product being coded, and end with a checksum
digit.
UPCA consists of a number system digit, ten numbers for the product
identification, and a checksum digit. All CognitiveTPG printers
automatically calculate the checksum. The checksum is not printed in
the bar code subtext.
UPCA+ is like UPCA except that extender bars are printed as per
UPCA specification, and the checksum is printed in the bar code
subtext. If a minus sign modifier is specified, the bar code is the same
but the checksum is removed from the bar code subtext.
UPCE is a six-digit variation of the UPC symbology. It always uses
number system zero. You must enter the six numbers of the bar code,
but not the number system digit or the checksum. The printer
calculates the checksum automatically. The bar code is printed with
extender bars and bar code subtext. The bar code subtext shows the
system number, the six digits of the bar code, and the checksum digit.
Using the minus sign bar code modifier removes the checksum from
the bar code subtext.
UPCE1 is the same as UPCE, except that it always uses number
system one.