Bar Code 39 Font: A Comprehensive Guide
If you are looking for a simple, reliable, and versatile bar code font that can encode both alphanumeric and special characters, you might want to consider Bar Code 39 Font. In this article, we will explain what Bar Code 39 Font is, how to use it, and how to compare it with other bar code fonts. By the end of this article, you will have a better understanding of Bar Code 39 Font and its applications.
What is Bar Code 39 Font?
Bar Code 39 Font is a type of linear or one-dimensional (1D) bar code font that consists of nine elements: five bars and four spaces. Three of the nine elements are wide and six are narrow. The width ratio between narrow and wide elements can vary between 1:2 and 1:3. Each character in Bar Code 39 Font is composed of five black bars and four white spaces, with a total of nine elements. There are 43 characters in Bar Code 39 Font, including uppercase letters (A-Z), digits (0-9), space, and six special characters (-, ., $, /, +, %). An additional character (*) is used as the start and stop delimiter for each bar code. The name Bar Code 39 comes from the fact that there are 39 characters in the original design, excluding the start and stop character.
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History and origin of Bar Code 39 Font
Bar Code 39 Font was developed by Dr. David Allais and Ray Stevens of Intermec in 1974. Their original design included two wide bars and one wide space in each character, resulting in 40 possible characters. Setting aside one of these characters as the start and stop pattern left 39 characters, which was the origin of the name Bar Code 39. Four punctuation characters were later added, using no wide bars and three wide spaces, expanding the character set to 43 characters. Bar Code 39 was later standardized as ANSI MH 10.8 M-1983 and MIL-STD-1189. It is also defined in ISO/IEC 16388:2007.
Features and specifications of Bar Code 39 Font
Some of the features and specifications of Bar Code 39 Font are:
It is a variable length bar code font, which means that it can encode any number of characters within the limits of the printing device.
It is a discrete bar code font, which means that each character is encoded independently and there is no inter-character gap.
It is a self-checking bar code font, which means that it does not require a check digit or checksum for error detection. However, a modulo-43 check digit can be optionally added for extra security.
It has a low data density, which means that it requires more space to encode data than other bar code fonts. This limits its use for very small items or high-volume applications.
It can encode both alphanumeric and special characters, which makes it suitable for various industries and applications.
It can be easily integrated into existing printing systems by adding a bar code font to the system or printer and then printing the raw data in that font.
It can be read by virtually any bar code scanner or reader.
Advantages and disadvantages of Bar Code 39 Font
Some of the advantages of using Bar Code 39 Font are:
It is easy to use and implement, as it does not require any special software or hardware.
It is compatible with most bar code scanners and readers, as it is one of the oldest and most widely used bar code fonts.
It can encode both alphanumeric and special characters, which makes it versatile and flexible for different applications.
Some of the disadvantages of using Bar Code 39 Font are:
It has a low data density, which means that it requires more space to encode data than other bar code fonts. This limits its use for very small items or high-volume applications.
It does not have a built-in error detection mechanism, which means that it is prone to misreading or corruption. A check digit can be added, but this reduces the data capacity and increases the complexity of the encoding and decoding process.
It is not suitable for encoding lowercase letters, as they are not part of the standard character set. Some variations of Bar Code 39 Font, such as Full ASCII Bar Code 39 or Extended Bar Code 39, can encode lowercase letters, but they require more elements per character and are less compatible with some scanners and readers.
How to Use Bar Code 39 Font?
There are different ways to use Bar Code 39 Font, depending on your needs and preferences. Here are some of the common methods to generate, scan, and install Bar Code 39 Font.
How to generate Bar Code 39 Font with online tools
One of the easiest ways to generate Bar Code 39 Font is to use online tools that can create bar codes for you. There are many websites that offer free or paid services to generate Bar Code 39 Font, such as . All you need to do is to enter the data you want to encode, choose the format and size of the bar code, and click on the generate button. You can then download or print the bar code image as you wish. Some online tools also allow you to customize the color, font, alignment, and orientation of the bar code.
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How to scan Bar Code 39 Font with online tools
Another way to use Bar Code 39 Font is to scan it with online tools that can decode bar codes for you. There are also many websites that offer free or paid services to scan Bar Code 39 Font, such as . All you need to do is to upload or capture the image of the bar code you want to scan, choose the type and format of the bar code, and click on the scan button. You can then see the decoded data on your screen. Some online tools also allow you to verify the validity and accuracy of the bar code.
How to install and use Bar Code 39 Font in different applications
A third way to use Bar Code 39 Font is to install it in your computer or device and use it in different applications, such as word processors, spreadsheets, databases, or graphic design software. There are many sources that offer free or paid downloads of Bar Code 39 Font files, such as . All you need to do is to download the font file (usually in .ttf or .otf format) and install it in your system by following the instructions provided by the source. You can then select the font from your application and type the data you want to encode. You may need to add an asterisk (*) before and after the data to indicate the start and stop character. You may also need to adjust the font size and spacing to ensure optimal readability of the bar code.
How to Compare Bar Code 39 Font with Other Bar Code Fonts?
Bar Code 39 Font is not the only bar code font available in the market. There are many other types of bar code fonts that have different features and specifications. How do you know which one is the best for your needs? Here are some criteria that you can use to compare different bar code fonts:
Comparison criteria for different bar code fonts
Data capacity: This refers to how much data can be encoded in a given space by a bar code font. The higher the data capacity, the more information can be stored in a smaller area.
Data type: This refers to what kind of data can be encoded by a bar code font. Some bar code fonts can only encode numeric data, while others can encode alphanumeric or even binary data. The more data types a bar code font can encode, the more versatile it is for different applications.
Error detection: This refers to how a bar code font can detect and correct errors that may occur during the encoding or decoding process. Some bar code fonts have built-in error detection mechanisms, such as check digits or checksums, while others do not. The more error detection a bar code font has, the more reliable and secure it is for data transmission.
Readability: This refers to how easy it is to read a bar code font by a scanner or reader. Some factors that affect the readability of a bar code font are the contrast, resolution, orientation, and distortion of the bar code image. The higher the readability of a bar code font, the faster and more accurate it is for data capture.
Compatibility: This refers to how well a bar code font can work with different devices, systems, and applications. Some bar code fonts are more compatible with certain scanners, readers, printers, or software than others. The higher the compatibility of a bar code font, the easier and more convenient it is to use.
Comparison table for Bar Code 39 Font and other popular bar code fonts
To illustrate how different bar code fonts compare with each other based on the criteria above, here is a comparison table for Bar Code 39 Font and some other popular bar code fonts:
Bar Code Font
Data Capacity
Data Type
Error Detection
Readability
Compatibility
Bar Code 39
Low
Alphanumeric and special characters
Optional check digit
Medium
High
Code 128
High
Alphanumeric and binary data
Mandatory check digit
High
High
EAN-13
Medium
Numeric data only
Mandatory check digit
High
Medium
QR Code
Very high
Alphanumeric, binary, and kanji data
Built-in error correction codes
Very high
Very high
Data Matrix
Very high
Alphanumeric and binary data
Built-in error correction codes
Very high
Very high
Conclusion and recommendation for choosing the best bar code font
As you can see from the comparison table, different bar code fonts have different strengths and weaknesses. There is no one-size-fits-all solution for choosing the best bar code font for your needs. You have to consider various factors, such as the amount and type of data you want to encode, the level of error detection you need, the readability and compatibility of the bar code font, and the space and cost constraints of your application. Based on these factors, you can select the most suitable bar code font for your purpose.
However, if you are looking for a simple, reliable, and versatile bar code font that can encode both alphanumeric and special characters, Bar Code 39 Font might be a good option for you. It is easy to use and implement, compatible with most scanners and readers, and suitable for various industries and applications. It does have some limitations, such as low data density, optional error detection, and no lowercase letters, but these can be overcome by using variations or extensions of Bar Code 39 Font, such as Full ASCII Bar Code 39 or Extended Bar Code 39. Alternatively, you can also use other bar code fonts that have higher data capacity, error detection, or readability, such as Code 128, EAN-13, QR Code, or Data Matrix.
Conclusion
In this article, we have explained what Bar Code 39 Font is, how to use it, and how to compare it with other bar code fonts. We hope that this article has helped you to understand Bar Code 39 Font better and to make an informed decision when choosing a bar code font for your needs. If you have any questions or comments about Bar Code 39 Font or other bar code fonts, feel free to leave them below. Thank you for reading!
FAQs
Here are some frequently asked questions about Bar Code 39 Font and other bar code fonts:
What is the difference between Bar Code 39 and Code 39?
Bar Code 39 and Code 39 are two names for the same bar code font. They are both synonyms for the same type of linear or one-dimensional (1D) bar code font that consists of nine elements: five bars and four spaces.
What is the difference between Bar Code 39 and Full ASCII Bar Code 39?
Bar Code 39 is the original version of the bar code font that can encode 43 characters: uppercase letters (A-Z), digits (0-9), space, and six special characters (-, ., $, /, +, %). Full ASCII Bar Code 39 is a variation of Bar Code 39 that can encode all 128 ASCII characters by using two characters from Bar Code 39 to represent one ASCII character. For example, the lowercase letter "a" is encoded as "+A" in Full ASCII Bar Code 39.
What is the difference between Bar Code 39 and Extended Bar Code 39?
Extended Bar Code 39 is another variation of Bar Code 39 that can encode all 128 ASCII characters by using a special character (%) followed by one character from Bar Code 39 to represent one ASCII character. For example, the lowercase letter "a" is encoded as "%A" in Extended Bar Code 39.
How do I add a check digit to Bar Code 39?
A check digit is an optional digit that can be added to the end of a bar code to verify its validity and accuracy. To add a check digit to Bar Code 39, you need to follow these steps:
Add an asterisk (*) before and after the data you want to encode.
Assign a numerical value to each character in the data according to its position in the character set. For example, A=1, B=2,... Z=26; 0=0,...9=9; -=36,.=37,$=38,/=39,+ =40,%=41.
Add up all the numerical values of the characters in the data.
Divide the sum by 43 and find the remainder.
Find the character that corresponds to the remainder in the character set.
Add that character after the data but before the final asterisk (*).
For example, if you want to encode "ABC123" with a check digit in Bar Code 39, you need to do the following:
Add an asterisk (*) before and after the data: *ABC123*
Assign a numerical value to each character: A=1, B=2, C=3, 1=1, 2=2, 3=3
Add up all the numerical values: 1+2+3+1+2+3=12
Divide the sum by 43 and find the remainder: 12/43=0 with remainder 12
Find the character that corresponds to the remainder: 12=L
Add that character after the data but before the final asterisk (*): *ABC123L*
This is the final bar code with a check digit in Bar Code 39.
How do I read a bar code with a check digit in Bar Code 39?
To read a bar code with a check digit in Bar Code 39, you need to follow these steps:
Scan the bar code with a scanner or reader that can decode Bar Code 39.
Ignore the first and last asterisk (*) that indicate the start and stop character.
Read the data from left to right until you reach the last character before the final asterisk (*). This is the check digit.
Assign a numerical value to each character in the data according to its position in the character set. For example, A=1, B=2,... Z=26; 0=0,...9=9; -=36,.=37,$=38,/=39,+ =40,%=41.
Add up all the numerical values of the characters in the data.
Divide the sum by 43 and find the remainder.
Find the character that corresponds to the remainder in the character set.
Compare that character with the check digit. If they match, the bar code is valid and accurate. If they do not match, the bar code is invalid or corrupted.
For example, if you want to read this bar code with a check digit in Bar Code 39: *ABC123L*, you need to do the following:
Scan the bar code with a scanner or reader that can decode Bar Code 39.
Ignore the first and last asterisk (*): ABC123L
Read the data from left to right until you reach the last character before the final asterisk (*): ABC123. This is the check digit: L
Assign a numerical value to each character in the data: A=1, B=2, C=3, 1=1, 2=2, 3=3
Add up all the numerical values of the characters in the data: 1+2+3+1+2+3=12
Divide the sum by 43 and find the remainder: 12/43=0 with remainder 12
Find the character that corresponds to the remainder: 12=L
Compare that character with the check digit: L=L. They match, so the bar code is valid and accurate.
This is how you read a bar code with a check digit in Bar Code 39.
This is the end of the article. I hope you enjoyed reading it and learned something new about Bar Code 39 Font and other bar code fonts. If you have any feedback or suggestions, please let me know in the comments section below. Thank you for your time and attention! 44f88ac181
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