Zebra CPCL Specifications download pdf (Page 47)

100

101

Mobile Printing Systems

CPCL Programming Manual

Section 5

Linear Bar

Codes

pg. 5-3

UPC and EAN/JAN Bar Codes

UPC and EAN/JAN bar codes are typically used for marking products with a unique code used to look

up prices and to track inventories of goods sold. They are also used for store coupons, periodicals, and

paperback books. UPC and EAN/JAN bar codes are generally rectangular, contain a fixed amount of data,

and in most cases are accompanied by human readable text printed below them. For best results, this text

should be an OCR-A (resident font 2), a sans serif font (resident font 7) or an OCR-B font.

The first number in the UPC/EAN bar code is the number system character. The specification lists use of

characters 0 through 9 as follows.

0 Regular UPC codes (UPC-A and UPC-E)

1 Reserved

2 Random weight items, like store packaged meat. (UPC-A only)

3 National Drug Code and National Health Related Items Code in current 10-digit code length (UPC-A

only)*

4 In-store marking of non food items without code format restriction and with check digit protection

(UPC-A only)

5 Coupons (UPC-A only)

6 Regular UPC codes (UPC-A only)

7 Regular UPC codes (UPC-A only)

8 Reserved

9 Reserved

* Number system 3 has the following note in the specication. “…the symbol is not aected by the various internal

structures possible with the NDC or HRI codes.” The users should determine what eect this statement may have on their

program. It will not change how bar codes are printed.

The checksum is the last number in the bar code and can be used to make certain that the bar code is

decoded properly. This digit is automatically calculated by the printer. The UPC bar code specification

has the full instructions for calculating this checksum. The methodology is as follows:

For this example, the bar code will be 01234567890.

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