12/16/2023 0 Comments Generate barcode![]() Encoding Capacity and Data DensityĬode 128 is a variable-length barcode type, which means that it can be used to encode character sets of an arbitrary length. Thus, the length may vary depending on the amount of data to be encoded. The minimum possible size of the X-dimension is 0.0075 inches. Each symbol in a barcode is 11 times wider than the X-dimension (with the exception of the stop digit that is 13-time wider). It is recommended to set the size of quiet zones at least 10 times wider than the current X-Dimension. To perform manual scanning, the specification of Code 128 suggests setting the minimum height to 5.0 mm or 15% of its width. The barcode structure includes the following elements: The sum of bar widths must be even (4, 6, or 8 units), the sum of the widths of the spaces must be odd (3, 5, or 7 units), and in total, the size is 11 units per symbol. Each bar or space can have a width of 1, 2, 3, or 4 units (a unit has the size of X-dimension). This encoding set supports only numerical digits in this way, one barcode symbol can contain two data digitsĪll symbols in a barcode contain 3 bars and 3 spaces. Code 128 C: all numerical digit pairs from 00 to 99 and 3 special symbols.Code 128 B: all numerical digits (0-9), uppercase and lowercase English letters (A-Z, a-z), punctuation symbols, and 7 special characters (ASCII from 32 to 127).Code 128 A: all numerical digits (0-9), uppercase English letters (A-Z), punctuation symbols, 7 special characters, and ASCII control symbols (ASCII characters from 00 to 95).It is possible to vary encoding sets within a single barcode. The required option needs to be specified in the start character. It provides three different encoding sets that define how encoded information gets interpreted by scanners: A, B, and C. Characteristics Encoding Character SetĬode 128 supports encoding symbols from the full ASCII 128 character set. At present, Code 128 is one of the most widespread barcode types and has multiple applications, including transport industry and warehouse management, as well as retail and non-retail environments, such as library management, customer loyalty programs, item tracking, etc. This specification has been actively used in various business tasks in which large amounts of information need to be encoded in conditions of limited space. NET for linear barcode generation and recognition: You can find additional information of classes and properties that are used in Aspose.BarCode for.
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