Chapter 11: Bar Code Commands for 24-Pin Printers 117
When calculating the width of the printout, you must take into consideration the Start and Stop
Code patterns:
Table 90: IBM/Epson Select Code 128 Command —
Start and Stop Codes for Parameter n
5
Values (24-Pin Printers)
Value of n
5
Start Code Stop Code
1
2
3
4
5
6
7
55/360"
77/360"
110/360"
132/360"
165/360"
187/360"
220/360"
62/360"
88/360"
127/360"
153/360"
192/360"
218/360"
257/360"
Code 128 Parameter n
8
This parameter sets whether or not the readable characters are printed.
n
8
= 1: print readable characters
n
8
= 0: do not print readable characters
Print Code 128 Bar Code Command
The command for printing Code 128 bar codes is
ESC DLE B m [data]
where parameter m designates the number of characters which will follow in the data. To
indicate which set to use (A, B, or C), use the set letter as the first digit of the data within the
command.
Each set has a different check digit.
Table 91: IBM/Epson Print Code 128 Command — Check Digits (24-Pin
Printers)
Check Digit
Code Set ASCII Dec Hex
A g 103 67
B CAN 24 18
C @ 64 40
Interleaved 2 of 5 Bar Code Commands
Interleaved 2 of 5 bar coding is used mainly in the distribution industry. Two digits are
encoded: one in the bars and one in the spaces. Ten characters are encoded, each any ASCII
character from 0 to 9 (48 to 57 Dec, 30 to 39 Hex).
The sum of the black bars and spaces becomes the maximum width of two characters.
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