What could be the reason for the Escpos Thermal ZJ-58 not showing anything when printing Python Code128 Barcodes?

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There could be several reasons why the Escpos Thermal ZJ-58 is not showing anything when printing Python Code128 barcodes:

1. Incorrect configuration: Check that the printer is properly configured and set up to print barcodes. Make sure that the barcode font is installed on the printer.

2. Barcode format: Check that the barcode format is correct. For example, the Code128 barcode requires specific start and stop characters.

3. Encoding: Ensure that the barcode generator is encoding the data correctly. If the data is not encoded correctly, the barcode will not print properly.

4. Printer driver: Check that the printer driver is up to date and compatible with the operating system being used.

5. Print head: It is possible that the print head may be damaged or dirty. Clean the print head and try again.

6. Connectivity issues: Ensure that the printer is properly connected to the computer or network. If there are connectivity issues, the barcode may not print properly.

7. Insufficient power supply: The printer may not be receiving enough power to print the barcode. Check that the power supply is providing enough power to the printer.