The OCR capability that comes with check scanners cannot read check amounts, dates, signatures and so on.
The OCR supported by check
scanners can only read lines of machine printed characters in
specialized fonts designed specifically for OCR reading. For example,
many payment coupons contain a line of machine printed characters.
These lines often includes an account number, amount owned, the due
date, and so on. Check scanner OCR can read this type of information
provided that the particular check scanner's OCR engine supports the
target font and the digits are printed clearly. Another common use of
check scanner OCR is to read the MICR line optically as a quality check.
Please
note that not every check scanner has OCR capability. Some
manufacturers offer it with their check scanners and some do not.