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The nearest multiple of 10 that is equal to or higher than the checksum, is 90. Subtract them: 90 - 89 = 1, which is the check digit x of the barcode. For EAN-8 barcode 7351353x, where x is the unknown check digit, the check digit calculation is:
For the end user, Code 128 barcodes may be generated by either an outside application to create an image of the barcode, or by a font-based barcode solution. Either solution requires the use of an application or an application add in to calculate the check digit and create the barcode.
A GS1 check digit calculator and detailed documentation is online at GS1's website. [5] Another official calculator page shows that the mechanism for GTIN-13 is the same for Global Location Number/GLN. [6] For instance, the UPC-A barcode for a box of tissues is "036000241457".
The EAN-8 code is an eight-digit barcode used usually for very small articles, such as chewing gum, where fitting a larger code onto the item would be difficult. Note: the equivalent UPC small format barcode, UPC-E, encodes a GTIN-12 with a special Company Prefix that allows for "zero suppression" of four zeros in the GTIN-12. The GS1 encoding ...
ISSN with an EAN-2 addon representing issue number 5. The EAN-2 is a supplement to the EAN -13 and UPC-A barcodes. It is often used on magazines and periodicals to indicate an issue number.
The barcode scheme does not contain a check digit (in contrast to—for instance—Code 128), but it can be considered self-checking on the grounds that a single erroneously interpreted bar cannot generate another valid character. Possibly the most serious drawback of Code 39 is its low data density: It requires more space to encode data in ...