EAN-130000001002881   EAN-13 barcode 0000001002881
UPC-A000001002881   UPC-A barcode 000001002881
Product Name9-1/2 5/16x9-1/2 Tie Rod
CategoryAutomotive: Parts
Created07-01-2006
Modified09-05-2018 6:01:00pm
MD5a4e0580f04ba320e4e3f84a718690a08
SHA256bd54f09db2583893d037409f2b62945340bf5e7af19050e72dfdc893031a8ac8
Search Googleby EAN or by Title
Query Time0.0013480

Code 128 is a high-density 1D barcode symbology. This barcode set makes use of the entire 128 ASCII characters which include letter, number and symbols.

Code 128 Barcode

As with all barcodes, there are indicators to identify where the barcode starts and stops. These are marked in yellow below. Code 128 also has a check character which has been marked in green. The remainder of the barcode is the data being encoded. The text below the barcode is optional and is for human consumption in the event the barcode can't be scanned or if people also need to know what the code means.

Code 128 Barcode

Each character in the barcode symbol is composed of three bars and three spaces. Each bar or space must range from 1-4 units and the sum of all the width of all bars must work out to an even number. The stop marker is special because it adds an extra bar of 2 units at the very end (4 bars and 3 spaces). There are three different start markers to to identify which code set is being used. To represent all 128 characters, the code sets can be within a single barcode as needed by using control characters 98-101 (depending on the code set).

The check character is calculated by summing the value of each character and multiplying it by its position. The start character is also part of the sum but is added without weight (multiply by 1 just like the first encoded data character) then when you have the sum take the modulo 103 remainder. This gets a little more complex when mixing modes within a single barcode.

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