Mobile Printer CPCLProgramming Manual P5-7
this digit if the user selects a 39C or a F39C bar code.
Check Character Numerical Value Table
Char Value Char Value Char Value Char Value
00 C12 O24 - 36
11 D13 P25 . 37
22 E14 Q26
SPACE 38
33 F15 R27 $ 39
44 G16 S28 / 40
55 H17 T29 + 41
66 I18 U30 % 42
77 J19V31 $ (full) 43*
88 K20W32 % (full) 44*
99 L21X33 /(full) 45*
A10M22 Y 34 + (full) 46*
B11 N 23 Z35
* Full represents F39 or F39C for Full ASCII
Refer to the full bar code symbology specification for
complete information on checksum calculation. For a
short example, take an example bar code with the data
“CODE 39” .
Step 1: Assign a value to each character per the Char-
acter Numerical Value Table above . C=12, O=24,
D=13, E=14, space = 38, 3=3, 9=9.
Step 2: Add the values 12+24+13+14+38+3+9=113.
Step 3: Divide this number by 43. The remainder or
modulo, 27, is the checksum.
Step 4: Referring to the table, 27 is the character R.
Therefore, the checksum in the bar code should be R.
The final code reads “CODE 39R” when it is decoded.
CODE 39 (3 OF 9) SPECIFICATIONS
Ideal Ideal
Bar code Bar code Wide/Narrow Narrow Checksum
Symbology Type Input Length Characters Ratio Dot Width Calculation
Code 39 39 Variable Refer text 2.5:1 2 none
39C Variable Refer text 2.5:1 2 mod 43
F39 Variable Refer text 2.5:1 2 none
F39C Variable Refer text 2.5:1 2 mod 43
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