SATO SG112 ex Programming Reference Manual page 170

UPC-A/EAN/JAN
2) If printing in serial 1 or serial 2 mode, specify the bar width expansion factor so that the width of
the narrow bar is at least 3 dots.
Bar width ratio 1:2
Bar width ratio 1:3
Bar width ratio 2:5
UPC-A/EAN/JAN
3) If printing in serial 1 or serial 2, reduce the print speed.
2L or more
3L or more
3L or more
2L or more
3L or more
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