Unisys E-@CTION EFP9800 - Manual (Page 157)

EFP9800 ESC/POS Commands
3255 4073– 002 6– 67
Second Variation: Length of Byte Specified at Beginning of String
Hexadecimal Decimal ASCII
1D 6B m [d]n 29 107 m [d]n GS k m [d]n
m = 65-71, 73 (see the table)
d =0-127 (see the table)
n = 1-255 (see the table)
The value of m selects the bar code system as described in the table. When data
is present in the print buffer, the printer processes the data following m as
normal data.
The variable d indicates the character code to be encoded into the specified bar
code system. See the table. If character code d cannot be encoded, the printer
prints the bar code data processed so far, and the following data is treated as
normal data.