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Code 39 is a one-dimensional barcode launched in 1975, which is currently mainly used in industrial products, commercial data and hospital health care materials. Its biggest advantage is that there is no mandatory limit on the number of codes, it can capitalize English letters, and the check code is negligible. China has also formulated the corresponding 39-yard international standard.
The standard 39 code is composed of the start safe space, the start code, the data code, the negligible check code, the stop safe space and the stop code.
39 Yard Basics:
1. There are two common reasons for the three-nine code in China, one is because the three-nine code has few restrictions and supports the text number, and the other is that it is very suitable for informal occasions.
2. The length of the three-nine code has no compulsive limit, and can be customized according to your own needs.
3. The data content that can be represented by the three-nine codes includes the numbers 0-9, the uppercase letters A-Z, [+], [-], [*], [/], [%], [$], [.], and space characters, etc., a total of 44 sets of codes.
4. In terms of reading, allowing two-way scanning and reading, that is to say, the user reads 39 yards backwards is also the same result.
The check code of 5.39 code is optional and can be used at the discretion of the user.
6.39 codes occupy more space than normal barcodes.
The start and end codes for code 7.39 are both * characters.
The steps to batch make 39 codes in the barcode generator software are simple, double-click the drawn barcode, and in the Graphic Properties - Barcode tab, set the barcode type to code 39.
In the data source, click the "Modify" button, select "Randomly Generated" for the data object type, generate a length of 6, and click Edit.
In text-formatting, enter the start and end characters "*", enter as many data as you want?, note that it is in the English state "?" After that click OK, as shown in the figure:
The above is the introduction of code39 barcodes and the steps of mass production. If you want to know more about the basic knowledge and operation skills of code39 barcodes, you can go to the barcode generation software website to find the corresponding tutorials, which will not be described in detail here.