The dot matrix printer keeps printing garbled characters

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What’s causing the dot matrix printer to consistently print garbled characters?

During the use of a dot matrix printer, there are instances when it consistently prints out garbled characters. What could be the reasons for this issue?

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  1. Problems with the computer operating system:

Sometimes, print jobs submitted to the computer pile up in the print management program, resulting in the transmission of jumbled data to the printer and leading to the printing of garbled characters.

  1. Failure of the dot matrix printer:

Disconnect the dot matrix printer and connect it to a properly functioning computer with normal printing capabilities. If garbled characters persist, it indicates a fault in the dot matrix printer.

  1. Data transmission problems:

Issues such as poor quality data lines or inadequate contact can cause data loss during transmission, leading to the printing of garbled characters and errors in Chinese character printing.

  1. Mode error:

Dot matrix printers have two modes: LQ emulation mode and self-printing mode. An error in mode selection can result in garbled characters.

  1. Command compatibility problem:

If the dot matrix printer settings do not match the current printer driver mode of the system, compatibility issues with commands may cause the printing of garbled characters.

  1. Driver installation error:

Incorrect or damaged printer driver installation can lead to the printing of garbled characters.

  1. Corrupted fonts:

If the computer lacks installed printed text fonts or if the font files are damaged, it can result in the appearance of garbled characters during printing.

Second, how to resolve the issue of garbled characters in continuous dot matrix printer printing:

When faced with the problem of continuous garbled characters in dot matrix printers, follow these steps to resolve the issue:

  1. Cancel all print jobs, restart both the printer and the computer. In many cases, common faults can be resolved through this step.

  2. If garbled characters persist after restarting, check the printer driver, delete the existing printer driver, and then download and reinstall it from the official website.

  3. If reinstalling the driver does not resolve the issue, consider trying another computer. If the printer operates normally on a different computer, it indicates a problem with the original computer, and the system may need to be reinstalled.

  4. If a properly functioning computer still prints garbled characters, it may indicate a fault in the dot matrix printer, possibly in the mechanical components or the drive circuit. Consider seeking professional repair services.

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