Lexmark CX727 Forms and Bar Code Card P4.2 Technical Reference - Page 107
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Lexmark Confidential until announced Appendix B - Supported bar codes Bar code UPC-A Forms and Bar Code For Card ms Doc Co um Opt mp ent ra v3. 3 v3. 2 v3.1 v3. 0 ose Pro For r duc ms v3. er 3.9 YYYYYYY Sample image UPC-A with Y Y Y Y Y Y Y1 2-digit supplement al UPC-A with Y Y Y Y Y Y Y1 5-digit supplement al UPC-E YYYYYYY UPC-E with Y Y Y Y Y Y Y1 2-digit supplement al UPC-E with Y Y Y Y Y Y Y1 5-digit supplement al 107 Description UPC-A is a 12-digit numeric symbology consisting of 11 data digits and 1 check digit. The first digit is a number system that usually represents the type of product being identified. The next five digits are a manufacturer code, followed by a five-digit product identifier. The last digit is the checksum. UPC-A allows for a supplemental two- or fivedigit number to be appended to the main bar code symbol. UPC-E is a 6-digit UPC symbology that compresses a normal 12-digit UPC-A code into a 6-digit code. It suppresses the first (number system) digit, trailing zeros in the manufacturer code, and leading zeros in the product identification part of the bar code. A seventh check digit is encoded into a parity pattern for the six main digits. UPC-E can be used only if the number system digit is 0 and the original 10 data characters have at least 4 zeros. UPC-E allows for a supplemental two- or fivedigit number to be appended to the main bar code symbol.