How to Fix Random Data Printing Issues with Your Receipt Printer

If you have ever experienced random data printing issues with your receipt printer, you know how frustrating it can be. Random data printing occurs when your printer prints out garbled or unreadable characters instead of the expected receipt. This can happen due to various reasons, such as incorrect driver settings, faulty cables, incompatible software, or corrupted data.
In this article, we will show you how to troubleshoot and fix random data printing issues with your receipt printer. We will also recommend some reliable receipt printer driver software that can help you avoid these problems in the future.
Step 1: Check Your Printer Driver Settings
One of the most common causes of random data printing is incorrect printer driver settings. Printer drivers are software programs that allow your computer to communicate with your printer. If the driver settings are not compatible with your printer model or operating system, it can result in random data printing.
To check your printer driver settings, follow these steps:
- Open the Control Panel on your computer and click on Devices and Printers.
- Right-click on your receipt printer and select Properties.
- Click on the Advanced tab and make sure that the driver name matches your printer model. For example, if you have a POS-X thermal receipt printer, the driver name should be POS-X Thermal Printer Driver.
- Click on the Printing Defaults button and check the paper size, orientation, resolution, and other settings. Make sure they are appropriate for your receipt printer and paper type.
- Click OK to save the changes and close the Properties window.
Step 2: Check Your Printer Cable and Port

Another possible cause of random data printing is a faulty or loose printer cable or port. If the connection between your computer and printer is not stable, it can result in data loss or corruption during transmission.
To check your printer cable and port, follow these steps:
- Turn off your computer and printer and unplug them from the power source.
- Disconnect the printer cable from both ends and inspect it for any damage or wear. If you see any signs of damage, replace the cable with a new one.
- Reconnect the printer cable to both ends and make sure it is firmly inserted into the correct ports. If you are using a USB cable, try using a different USB port on your computer. If you are using a serial or parallel cable, make sure the pins are aligned correctly.
- Plug in your computer and printer and turn them on. Try printing a test page and see if the random data printing issue is resolved.
Step 3: Check Your Software Compatibility

Sometimes, random data printing can occur due to incompatible software applications or updates. If you are using a third-party software program to print receipts, such as a point-of-sale (POS) system or an accounting software, make sure it is compatible with your receipt printer model and driver. Also, make sure you have installed the latest updates for both your software program and your printer driver.
To check your software compatibility, follow these steps:
- Visit the website of your software program vendor and look for any compatibility information or requirements for receipt printers. Make sure your receipt printer model and driver are supported by your software program.
- Visit the website of your receipt printer manufacturer and look for any updates or patches for your printer driver. Download and install them if available.
- Restart your computer and printer and try printing a test receipt from your software program. See if the random data printing issue is resolved.
Step 4: Check Your Data Integrity

The last possible cause of random data printing is corrupted or invalid data. This can happen if there is a virus or malware infection on your computer, if there is a power outage or surge during printing, or if there is a problem with your network connection or server.
To check your data integrity, follow these steps:
- Run a virus scan on your computer and remove any threats or infections found.
- Make sure you have a reliable power source and surge protector for your computer
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