Chapter 10: Bar Code Commands for 9-Pin Printers102
Select Code 39 Bar Code Command
The command for selecting Code 39 is
ESC DLE A m 2 0 n
3
n
4
n
5
n
6
n
7
n
8
Code 39 Parameter m
Parameter m designated the number of parameters to be set. The value of m is normally set to
hexadecimal 08.
Code 39 Parameters n
3
and n
4
These parameters set the vertical length of the bars in units of 6/72", as calculated by the
equation
[(n
3
x 10) + n
4
] x 6/72"
where the total value must be less than or equal to 25.
Code 39 Parameter n
5
This parameter sets the width of the narrow bars in 1/144" increments.
Table 68: IBM/Epson Select Code 39 Command —
Narrow Bar Widths for Parameter n
5
Values (9-Pin Printers)
Value of n5 Character Width
1
2
3
4
5
6
7
1/144"
2/144"
3/144"
4/144"
5/144"
6/144"
7/144"
Code 39 Parameter n
6
This parameter sets the width of the narrow space characters in 1/144" increments.
Table 69: IBM/Epson Select Code 39 Command —
Narrow Space Widths for Parameter n
6
Values (9-Pin Printers)
Value of n6 Character Width
1
2
3
4
5
6
7
4/144"
5/144"
6/144"
7/144"
8/144"
9/144"
10/144"