Printek 4500 Printer User Manual


 
Printing Bar Codes
Page B-13
Description of Supported Bar Code Types
Code 39
The Code 39 character set contains 43 characters: 0-9, A-Z, -, ., $, /, +, %, and space.
A maximum bar code density of approximately 5.5 characters per inch (using type
“a”) may be obtained.
The printer automatically inserts a narrow space between all valid data characters.
Invalid data characters will cause blank space to be inserted in the bar code. A
common character (*) is used for both start and stop delimiters. The printer will
automatically insert the start/stop delimiter before and after each bar code string.
Check digits are not automatically generated by the printer. If a check digit is to be
used, it must be included in the bar code data by the programmer.
2-of-5
The 2-of-5 character set contains 10 characters, the decimal digits 0-9. A maximum
bar code density of approximately 5.2 characters per inch (using type “g”) may be
obtained.
The printer automatically inserts a narrow space between all valid data characters.
Invalid data characters will cause blank space to be inserted in the bar code. The
printer will automatically insert the start delimiter before and the stop delimiter after
each bar code string. Check digits are not automatically generated by the printer. If a
check digit is to be used, it must be included in the bar code data by the programmer.
Interleaved 2-of-5
Interleaved 2-of-5 bar codes encode information in both the bars and spaces in order
to create a denser bar code. There are two techniques used to perform this interleave.
One technique takes the bars of an individual character and interleaves them into the
spaces to create a narrower character. Since each character is interleaved
individually, an even or odd number of characters may be interleaved without a
problem. This technique is referred to as bar/space interleave, and is abbreviated in
the previous tables as BS code.
The second and more popular technique takes the bars of two adjacent characters and
interleaves them together. All of the odd positioned characters are encoded in the
bars and all of the even positioned characters are encoded in the spaces. The
interleaving process requires an even number of characters to work correctly. This
technique is referred to as character interleave and is abbreviated in the previous
tables as C code.