Compuprint 9058 Programmer Manual - Manual (Page 80)

COMPUPRINT Mode
A78408098-003 78
Code BCD
DC4 DC4 ESC ! n 12 p EM
CODE-BCD bar code data fields do not have a
defined format length and contain numeric data
only: question marks will be printed in place of
HRC string otherwise, if possible. No internal check
digit algorithm is available for this standard: o field
is meaningless.
MSI Plessey
DC4 DC4 ESC ! n 13 p EM
MSI bar code data fields do not have a defined
format length and must contain numeric data only:
question marks will be printed in place of HRC
string otherwise, if possible. To releaf the host from
calculating MSI check digits, internal algorithms
are provided that are accessible by the host
application program giving the proper supported
value to o check-digit option field, according to the
following options:
0 Print the bar code
symbol with no printer-
generated check digits
1 Print the bar code
symbol with IBM
Modulus-10 check digit -
generated by the printer
and put at the end of the
numeric string: this will
be the 2
nd
check digit,
the 1
st
check digit is
IBM Modulus-10 also.
5 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
NCR Modulus-11
algorithm applied to the
received string: if the
modulus is 0 or 1 check
digit is 0.