Unisys EFP9800 Manual De Usuario

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EFP9800 ESC/POS Commands 
 
 
3255 4073– 002  
6– 65 
Print Bar Code (Receipt Station) 
Selects the bar code type and prints a bar code for the ASCII characters 
entered. The command is only valid at the beginning of a line. If the width of the 
bar code exceeds one line, the excess data is not printed. Illegal data cancels 
the command. 
There are two variations to this command: the first uses a NULL character to 
terminate the string; the second uses a length byte at the beginning of the string 
to compensate for the Code 128 bar code which can accept a NULL character as 
part of the data. 
Note:  Fixed-length codes can be aligned left, center, or right using the Align 
Positions command (1B 61). Variable-length codes are always center 
aligned. 
The check digit is calculated for UPC and JAN (EAN) codes if it is not sent from 
the host computer. Six-character zero-suppressed UPC-E tags are generated 
from full 11 or 12 characters sent from the host computer according to standard 
UPC-E rules. Start/Stop characters are added for Code 39 if they are not 
included.