7 - 7
OCR Modulo 36 Check Character
Scan this symbol to program the OCR template for a simple modulo 36 checksum of the digits 0 through
9 and the letters A through Z.
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 deter-
mines the modulo value for the calculation. By default, the check character computation is unweighted,
but the imager 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:
6512351X
The imager 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.
2. Enter the characters in order. For each character, look up the corresponding hex value from the
ASCII Conversion Chart (Code Page 1252)
, page A-3. Use the
Programming Chart
on the inside
the back cover of this manual to scan the two symbols for each hex value.
3. Scan the
Save
barcode on the inside back cover.
Example:
To program the modulo 11 check character from example #8 on
page 7-7
, enable the OCR-A
font. Scan the
Enter OCR Check Character
barcode on
page 7-7
, then scan the following
hex values in order:
3031323334353637383958
OCR Modulo 36 Check Character
Enter OCR Check Character
Summary of Contents for 4800dr - Document Camera
Page 1: ...4800dr Document Reader Barcode Guide ...
Page 8: ...vi OCR Programming Chart Programming Chart ...
Page 42: ...4 6 ...
Page 48: ...5 6 ...
Page 88: ...6 40 ...
Page 124: ...11 4 ...
Page 128: ...12 4 ...
Page 132: ...13 4 ...
Page 137: ......
Page 138: ......
Page 139: ......
Page 142: ...OCR Programming Chart a e d g c h t l r ...
Page 143: ...OCR Programming Chart T D A O Save Discard ...