CognitiveTPG A760 - Manual (Page 118)

A760 User Guide: Programming Supplement
Chapter 4: Programming commands 118 Revision F January 2010
Check serial number
Parsing the check serial number
Most banks print the check serial number in three easily
recognizable spots. The printer firmware will look for
the number in these spots, using the following ordered
algorithm. The examples use letters to represent symbols
on the check:
t Transit symbol
o “on us” symbol
$ Amount symbol
- Dash
c Check serial number
x Any other number
A number bracketed by “on us” symbols in the auxiliary
“on us” field is the check serial number.
occcccco txxxxxxxxxt xxxxxxxxo
Otherwise, a three or more digit number to the right of the
rightmost “on us” symbol, and to the left of the leftmost
amount symbol if an amount field is present, is the check
serial number.
txxxxxxxxxt xxxxxxxxo cccc
txxxxxxxxxt xxxxxxxxo cccc $xxxxxx$
If both of these searches fail to produce the check serial
number, extract the whole account number field from
between the rightmost transit symbol and the rightmost
“on us” symbol. A three, four, or five-digit number to the
right of the rightmost transit symbol, separated by a space
or a dash from the rest of the account number is the check
serial number.
txxxxxxxxxt cccc xxxxxxxxo
txxxxxxxxxt cccc-xxxxxxxxo
txxxxxxxxxt cccc xxxxxxxxo xx
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