Oki OKIPOS X400 Programming Manual page 126

Command Structure <ESC>BFbbccc (data)
bb
ccc =
(data) =
Character Set 0-9 (numeric only)
Density Table
Value of "bb" Narrow Bar Width
Example
<ESC>H325<ESC>V125<ESC>D30315009827721123
<ESC>H295<ESC>V200<ESC>OB0
<ESC>H340<ESC>V278<ESC>OB98277
<ESC>H480<ESC>V278<ESC>OB21123
<ESC>H640<ESC>V160<ESC>BF0313021826
<ESC>H655<ESC>V130<ESC>OB21826
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Bookland (UPC/EAN Supplement)
= Width of narrow element in dots (01~12)
Bar height in dots (001~999)
Bar code data (numeric); must be exactly 2 or 5 digits.
(mils)
02 10.0
03 15.0
04 20.0
124
Magnification
Factor
75%
112%
150%