BarcodeGenerators

Address specific issues of bar code generation and use

Why can't I scan my bar code?

This is the most common problem, usually caused by:

• Contrast insufficient: The bar code must be sufficiently dark and the background sufficiently white. Avoids printing bar codes directly in dark or transparent background.
• Quiet Zone is too narrow: Sufficient space must be left on both sides of the bar code, otherwise the scanner cannot locate the beginning and end of the bar code.
• Print quality poor: If the printer's nozzle is blocked and the line breaks or the powder is uneven, the scanner will not be read correctly.
• Scaled out: Over-compressed bar code width (especially when the bar width is 1 px) may lead to inadequate general scanning gun resolution.

2. What difference does Code 128 make to EN-13?

Code 128 It's a high-density, variable-long bar code that can encode all 128 ASCIIs character. It is flexible and widely applied to the internal management of the enterprise, the delivery of documents and asset tracking.

EAN-13 It is the international standard commodity barcode, which is used mainly for retail settlements. It must be 13. bits, and following specific coding rules (including prefixed country code, manufacturer code and verification slot). If you're going to sell the product in the store, you have to... GS1 applied for EAN code.

3. How can 100 per cent readability be guaranteed at the time of printing?

To ensure that the resulting bar code is scanned smoothly in all settings, the following best practices are recommended:

1. Using vector format: This tool supports the export of SVG formats. SVG is a vector map, which is the preferred type of professional printing, no matter how many times the zoom, it doesn't fall off.
2. Test printing: Before mass production, print one with a real printer and use a different cell phone, App Or a professional scanner to test.
3. Avoid reflection: If the bar code surface is plastic sealed or retroreflective, the scan light may be dispersed. It is recommended that you print on a dumb-ray paper.

4. Distinction between 1D barcode and 2D 2D code

1D barcode (1D Barcode) mainly stores an index value (e. g. ID), while 2D code (2D Code, e. g. QR) Code) can store more information, including web sites, text, business cards, etc. But in the traditional areas of retail and industrial automation, 1D Barcodes continue to dominate because of their speed of scanning and low hardware requirements.

5. EN-13 Checkpoint and Commodity Code Attention

The last item for EN-13 is the validation slot, which is used to help scan the device detect input errors and is not a product number that can be filled in at will. The manufacturer prefix and project number used in retail goods should be allocated by official bodies such as GS1; This tool is responsible for generating barcode graphics based on input and cannot replace commodity code applications, filings or authentications. Please confirm the numerical order after generation and test it with actual packaging and scanning equipment.

6. UPC-A, EN-13 and Code 128, how do you choose?

UPC-A is often used for retail goods in North America, usually using 12 digits; EN-13 For a wider international retail scene, use 13 bits. Both are suitable for commodity settlements, but internal numbers cannot be used directly as legal commodity codes. Code 128 supports a more flexible combination of letters and numbers, better suited to internal processes such as warehouse slots, express orders, asset numbers, etc. The selection of formats should be based on the following standards for coding supported by the cruise scanner and the operational system.

Print sizes, static areas and file formats

When printing bar code, do not reduce the static area on either side of the right or the right, nor force the width to fit the label. High contrasts should be kept in black and white, avoiding stretching to non-equivalent dimensions when exporting or layouting. Priority downloads of SVGs when they continue to be edited or handed over to the printing plant; Select PNG for document, web page or regular printing only, and print and scan it at physical size before printing.

8. Will data be uploaded?

Barcode graphics are generated by JavaScript in the current browser and input is not submitted to a thousand-space server to generate barcodes. Where internal numbers, inventory information or other sensitive data are involved, it is still recommended that they use their own equipment and trusted scanning tools and that the content of the document be checked before downloading.

Continue to use tools

If you need to encode a web site, text or contact, you can useQR codeGenerators； It takes a multi-dimensional code to try.Batch 2D Generator。 To read the 2D code of the existing picture, you can use it.QR code scanner。