Compuprint 9058 Programmer Manual - Manual (Page 82)

COMPUPRINT Mode
A78408098-003 80
4 Print the bar code
symbol with both check
digits generated by the
printer and put at the
end of the data. The 2
nd
check digit is IBM
Modulus-10, the 1
st
check digit is IBM
Modulus-11: if modulus
is 10, it is an error and
question marks will be
printed in place of HRC
string, if possible.
8 Print the bar code
symbol with both check
digits generated by the
printer and put at the
end of the data. The 2
nd
check digit is IBM
Modulus-10, the 1
st
check digit is the
complement to 11 of
IBM Modulus-11
algorithm applied to the
received string: if the
modulus is 0 or 1. it is
an error and question
marks will be printed in
place of HRC string, if
possible.
The printer-generated second check digit does not
show on required HRC string.