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Structure |
1. Leading quiet zone |
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Density |
Low-density. The density is 21 bars per inch, plus or minus one bar. Each bar and space pair must be between 0.045 and 0.050 inches wide, for a density of about four characters per inch. |
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Character set |
Numeric |
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Capacity |
14 Numeric |
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Error detection |
Postnet utilizes redundant information within a compact bar code format to provide error detection capability. |
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Error correction |
Postnet utilizes redundant information within a compact bar code format to provide a significant degree of error correction. |
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Usage |
Postnet was developed by the United States Postal Service (USPS) to allow faster sorting and routing of mails. |
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Industry |
Postal |