Brother HL-7050N - Manual (Page 242)

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HL7050_US_UG_FM5.5
Quick reference for commands
Bar code control
The printer can print bar codes in the HP LaserJet, EPSON
FX-850, and IBM Proprinter XL emulation modes.
Print bar codes or expanded characters
Code ESC i
Dec 27 105
Hex 1B 69
Format: ESC i n ... n \
Creates bar codes or expanded characters according to the segment
of parameters "n ... n". For more information about parameters, see
the following Definition of Parameters. This command must end with
the " \ " code (5CH).
Definition of Parameters
This bar code command can have the following parameters in the
parameter segment (n ... n). As parameters are effective within the
single command syntax ESC i n ... n \, they don't apply in the bar
code commands. If certain parameters are not given, they take the
preset settings. The last parameter must be the bar code data start
('b' or 'B') or the expanded character data start ('l' or 'L'). Other
parameters can be given in any sequence. Each parameter can start
with a lower-case or upper-case character, for example, 't0' or 'T0',
's3' or 'S3' and so one.