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Bar Code Reader Models 1000/1002 - BarcodeMuseum.com

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APPENDIX B - CODE 39 SPECIFICATIONS<br />

<strong>Code</strong> 39 is a variable length alphanumeric code. Each character is made up of<br />

nine elements, five bars and four spaces. Three of the elements are wide and<br />

six are narrow. <strong>Code</strong> 39 is a popular choice for applications because:<br />

- it is easy to print with low cost dot matrix printers<br />

- large character set (A-Z, 0-9, 7 special characters)<br />

- code can be extended to include the entire 128 ASCII character set<br />

- variable length.<br />

0123456789<br />

ABCDE12345<br />

CHARACTERISTICS:<br />

Character Set: 26 uppercase letters (A - Z)<br />

10 digits (0 - 9)<br />

7 special characters (SPACE -.$/+%)<br />

Symbol Length: Variable<br />

Check Digit: Optional<br />

Bi-directional Decoding:<br />

Maximum Density:<br />

Yes<br />

9.8 char./inch<br />

(using .0075 inch narrow element)<br />

B - 1

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