Epson Expression Home XP-420 All-In-One Printer (support site)
What did you do with your desktop PC before the printing issue occurred?
THIS article may be helpful.

Windows 10 64-bit is being supported by Microsoft until October 2025, so don't be in a hurry to switch to Windows 11 64-bit.
We don't know the description of your desktop PC, so it may not support installing and running Windows 11 64-bit.
Windows 11 64-bit still has several bugs and issues that are being worked out, so that's another reason to wait.

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Hi,
I've been to the site with the link you posted and reinstalled the XP-420 software. I didn't do anything with the desktop PC before the printing issue started. The issue was happening with a laptop I used before and now also with the desktop that I bought later, which is a Dell Inspiron 7700. It's very frustrating not to know just what is wrong with the printer.

 

Jolu, the printer itself will have a way of printing something, whether a report or a test page. That function works independently of a computer connection. If it cannot even print that, it is definitely an issue with the printer itself, as I suspect it is.

 

Actually, it's printing very faint blue lines with no letters or numbers. Blue is the only color I'm low on, all the others are okay. I printed a test page and only a few blue horizontal lines showed up. I've been able to print in black when the other colors were low before, but now it only prints the blue color for some reason.

 

The print heads may be clogged. Had the printer sat for a long period of time unused? Inkjet printers need to be used fairly frequently to keep the ink from solidifying in the nozzles. The heads may be replaceable, or you may be able to clean them. Look on the support site for any suggestions.

Sometimes, though probably rarely, you can run the cleaning process on the printer repeatedly and it may clean the heads, but if the ink has dried, that process may not help.

 

Running a Product Check
Running a product check helps you determine if your product is operating properly.

1. Disconnect any interface cables connected to your product.
2. Load plain paper in the product.
3. Press the
   home button, if necessary.
4. Press the left or right arrow button to select Setup and press the OK button.
5. Press the up or down arrow button to select Maintenance and press the OK button. You see this screen:
   
   
   
   
6. Press the OK button.
7. Press the
   start button. After the nozzle pattern prints, you see this screen:
   
   
   
   
8. Do the following, depending on the results of the product check:
   • If the page prints and the nozzle check pattern is complete, the product is operating properly. Any operation problem you may have could be caused by your computer, cable, software, or selected settings. Check the other solutions in this book or try uninstalling and reinstalling your printer software.
   • If the page prints but the nozzle check pattern has gaps, clean or align the print head.
   • If the page does not print, the product may have a problem. Check the other solutions in this manual. If they do not work, contact Epson.

After a clean Print a config page from the printer

You can print a network status sheet to help you determine the causes of any problems you may have using your product on a network.

1. Press the
   home button, if necessary.
2. Press the left or right arrow button to select Setup and press the OK button.
3. Press the up or down arrow button to select Network Settings and press the OK button. You see this screen:
   
   
   
   
4. Press the arrow buttons to select Network Status and press the OK button. You see this screen:
   
   
   
   Note: If you are connected to a network, the signal strength is also displayed.
5. Press the left or right arrow buttons to display the Network Status screen.
6. Press the up or down arrow buttons to select Print Status Sheet and press the OK button. You see this screen:
   
   
   
   
7. Press the
   start button to print the network status sheet. (Press the
   stop button if you want to cancel the operation.)

Examine the settings shown on the network status sheet to diagnose any problems you have.

 

Thank you. Yes, it sat unused for a long time. I'll get some cleaning solution if the nozzle check shows the print heads are the problem.

 

Have look at this Epson XP-420 How To Unclog Printhead - YouTube