Brother P-TOUCH 3.1 - Manual (Page 116)

Click this button to display the Control Code dialog box. To add control codes to the barcode data,
move the cursor to the desired position in the "Data:" edit box, then click the button for the desired
control code.
Control Code:
This box displays the name of the control code selected in the "Data:" edit box.
Start/Stop Code (CODABAR [NW-7] only)
Select the start and stop codes for the barcode. If "Manual" is selected, the start and stop codes must
be entered with the barcode data.
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