Xerox DocuPrint 96 Operator's Manual page 450

MICR OPERATING PROCEDURES
12-6
On-Us The On-Us symbol indicates that the numbers to the left of the
symbol are the account number. The content of the On-Us field is
determined by the issuing institution. The bank branch the check is
drawn on may also be indicated.
You will recognize your account number, your bank branch number,
and probably the check number. The check serial number appears
typically to the right of the On-Us symbol.
On larger business size checks, this symbol is also used to define a
field on the left end of the check. This field, called the Auxiliary On-
Us field, is optional and frequently contains a multiple digit serial
number.
Dash The dash is sometimes used as a separator within the On-Us field,
although reader/sorter manufacturers discourage its use because of
detection problems. Some banks use the dash to separate the bank
branch number from the account number.
XEROX DOCUPRINT 96/DOCUPRINT 96MX LPS OPERATOR GUIDE