Printronix ThermaLine Series Programmer's Reference Manual page 143

Format
C 3/9,
Codabar Codabar
(Portrait Page) (Portrait Page)
Bar Codes
Size Avg. X Dim.
X1 16.7 mil
X1A 16.7 mil
X1B 13.3 mil
X1C 13.3 mil
X1D 13.3 mil
X1E 10 mil
X1F 10 mil
X1G 6.7 mil
X2 33.3 mil
X3 50 mil
X4 66.7 mil
Ratio
2.8:1
2.2:1
2.5:1
2.75:1
2.25:1
2.67:1
2.33:1
2.5:1
2.8:1
2.8:1
2.8:1
5–5