NCR 7158, Руководство пользователя, Страница: 270 / 314

7-142 Chapter 7: Programming Guide
If all of these searches fail to produce the distinct check serial number,
and the check serial number field has been specified in the parsing
parameter string options, no check serial number will be returned. If it
is imbedded within the account number field, it will be returned as
part of that variable length field.
Exceptions
Some banks print the check serial number in a location that cannot be
electronically distinguished without specific exception information,
although it can be visually distinguished because it is repeated in the
upper right corner of the check. For these cases, the printer can hold up
to nine exceptions for specific banks in its non-volatile memory
(NVRAM), which is accessed by the read and write NVRAM
commands. The specific bank is picked out by its transit number, and
the firmware will look in the exception table for a transit number
match before looking in the normal check serial number locations.
In this example, without an exception table entry, the firmware would
always pick the rightmost four-digit number as the check serial
number following rule two above. The bank with the three digit check
serial number and the four digit extension after the “on us” symbol
would need to be exceptionally recognized:
txxxxxxxxxt ccc-xxxxxxxxxxoxxxx
txxxxxxxxxt xxx-xxxxxxxxxxocccc
In this example, without an exception table entry, the firmware would
not be able to pick out the check serial number because it is not
separated from the rest of the account number:
txxxxxxxxxt ccccxxxxxxxxxxo
In this example, without an exception table entry, the firmware would
not be able to pick out the check serial number correctly, because it is
imbedded within the rest of the account number:
txxxxxxxxxt xxx-ccc-xxxxxxxxxxo