Download USB 2D Barcode Scanner User Manual
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OCR User-Defined Check Character You can customize the check character calculation to suit your application. Each character of the check character alphabet can be programmed in its proper order. The number of characters you enter determines the modulo value for the calculation. By default, the check character computation is unweighted, but the scanner also supports two weighted modulo 10 checking schemes. Example: To program a modulo 11 check character, you would enter the following 11 characters in order: 0123456789X Also enter the OCR template: dddddddc Enable the OCR-A font, then scan the following string: The scanner performs the following check character computation: (6 + 5 + 1 + 2 +3 + 5 + 1 + X) modulo 11 = 0 Since the result is zero, the message is considered to be valid, so the reader outputs the message: 6512351 Programming a User-Defined Check Character 1. Scan the Enter OCR Check Character barcode, below: Enter OCR Check Character OCR Modulo 36 Check Character Enter OCR Check Character 2. Enter the characters in order. For each character, look up the corresponding hex value from the ASCII Chart. 116