Appendix C: Bar codes
C-12
Table 5
Character Value
Character Value
Character Value
0
0
F
15
U
30
1
1
G
16
V
31
2
2
H
17
W
32
3
3
I
18
X
33
4
4
J
19
Y
34
5
5
K
20
Z
35
6
6
L
21
-
36
7
7
M
22
.
37
8
8
N
23
Space
38
9
9
O
24
$
39
A
10
P
25
/
40
B
11
Q
26
+
41
C
12
R
27
%
42
D
13
S
28
E
14
T
29
Example: bar code data 123LPJ23@
Addition of values: 1+2+3+25+21+19+1+2+3 = 77
Division: 77/43 = 1 Remainder 34
Value 34 = character Y
Checksum (character) = Y
Calculating the Checksum for
Code 128
Each of the characters of Code 128 is assigned a reference value.
When calculating the checksum, these values are added after they
have been multiplied by a weighting. The weighting starts at 1 and
is increased by the value 1 for every digit. In addition, the reference
value of the start digit is added.
The total modulo 103 is the checksum.
The reference values are listed in Table 6. The different characters
are divided into three character sets (Code A, B, C). Character set C
consists exclusively of two-digit numbers (00 to 99). Each two-digit
number is assigned a bar code unit. This results in a higher informa-
tion density.
Summary of Contents for ML3390
Page 1: ...User Manual MICROLINE 3390 3391 IBM EPSON compatible People to People Technology...
Page 3: ...II...
Page 7: ...VI...
Page 347: ...Z 1 Declaration of Conformity CE...
Page 348: ...Z 2 Declaration of Conformity CE...
