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Code 93 Specification



Code 93, also known as ANSI/AIM Code 93, USS Code 93 is a continous, variable-length symbology. code 93 is used primarily by Canadian postal office to encode supplementary delivery information. Every symbol includes two check characters. Code 93 has a native character set of 26 upper case letters, 10 digits and 7 special characters.

Encoding
In Code 93, the number "1" represents a "dark" or "bar" section of the bar code whereas a "0" represents a "light" or "space" section of the bar code. Thus the numbers 1101 represents a double-wide bar (11), followed by a single-wide space (0), followed by a single-wide bar (1).

Check Sum
Every code 93 symbol must include two check characters which are referred to as "C" and "K". These two check characters immediately follow the encoded message itself and immediately precede the final stop character.

Code 93 Character Set
Code 93 starts with '*' and stops with '*'.
VALUE CHARACTER ENCODING VALUE CHARACTER ENCODING
0 0 100010100 24 O 100101100
1 1 101001000 25 P 100010110
2 2 101000100 26 Q 110110100
3 3 101000010 27 R 110110010
4 4 100101000 28 S 110101100
5 5 100100100 29 T 110100110
6 6 100100010 30 U 110010110
7 7 101010000 31 V 110011010
8 8 100010010 32 W 101101100
9 9 100001010 33 X 101100110
10 A 110101000 34 Y 100110110
11 B 110100100 35 Z 100111010
12 C 110100010 36 - 100101110
13 D 110010100 37 . 111010100
14 E 110010010 38 SPACE 111010010
15 F 110001010 39 $ 111001010
16 G 101101000 40 / 101101110
17 H 101100100 41 + 101110110
18 I 101100010 42 % 110101110
19 J 100110100 43 ($) 100100110
20 K 100011010 44 (%) 111011010
21 L 101011000 45 (/) 111010110
22 M 101001100 46 (+) 100110010
23 N 101000110 - * Start/Stop 101011110

Code 93 Extended: Code 93 can encode 128 Full ASCII character, if the character is not included in the above table, then you need to encode it using the $, /, %, and + symbols as "shift" characters in the Extended Encoding Table.It is the same with the Code 39 Extended Encoding Table. Note that the characters $ ,% , / , and + in Code 93 Extended Encoding Table should use the replace one in above table.



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