Dell Printer Error code oX12370490 is also known as the ‘Null Printer error.’ The issue can be fixed quite easily by executing some troubleshooting methods. You can read the steps written below. And if required can avail technical assistance by dialing dell customer support number.
• Click on the start button on the computer screen.
• In the search bar, type Device Manager and open it with double click
• After that scroll down to the Printer section
• Put a check on all the unknown Dell Printer and uninstall them from the device.