OCR-B Variant

OCR-A supports the following variants:

OCR-B Full ASCII

!#$%()*+,-./0123456789<>ABCDEFGHIJKLMNOPQRSTUVWXYZ^|Ñ

OCR-B Banking

#+-0123456789<>JNP|

OCR-B Limited

+,-./0123456789<>ACENPSTVX

OCR-B ISBN 10-Digit Book Numbers

-0123456789>BCEINPSXz

OCR-B ISBN 10 or 13-Digit Book Numbers

-0123456789>BCEINPSXz

OCR-B Travel Document Version 1 (TD1) 3-Line ID Cards

-0123456789<ABCDEFGHIJKLMNOPQRSTUVWXYZ

OCR-B Travel Document Version 2 (TD2) 2-Line ID Cards

-0123456789<ABCDEFGHIJKLMNOPQRSTUVWXYZ

OCR-B Travel Document 2 or 3-Line ID Cards Auto-Detect

!#$%()*+,-./0123456789<>ABCDEFGHIJKLMNOPQRSTUVWXYZ^|Ñ

OCR-B Passport

-0123456789<ABCDEFGHIJKLMNOPQRSTUVWXYZÑ

OCR-B Visa Type A

-0123456789<ABCDEFGHIJKLMNOPQRSTUVWXYZ

OCR-B Visa Type B

-0123456789<ABCDEFGHIJKLMNOPQRSTUVWXYZÑ

OCR-B ICAO Travel Documents

This allows reading either TD1, TD2, Passport, Visa Type A, or Visa Type B without switching between these options. It automatically recognizes the travel document read.

Selecting one of the ISBN Book Numbers automatically applies the appropriate ISBN checksum, so setting this is not required.

Selecting the following OCR-B variants automatically sets the appropriate OCR Lines. These five variants invoke extensive special algorithms and checking for that particular document type:

If you set one of these variants with both OCR-A and OCR-B enabled, only the specified travel document is read without reading OCR-A. Returning OCR-B variant to its default (Full ASCII) allows reading OCR-A.

For the best performance in passport reading, fix the target passport and the scanner in place (6.5 - 7.5”).