Are you getting an error code 20 while printing a document or pdf using Epson printer? With Epson printers, not activated Error Code 20 is caused when you fail to configure the EPSON printer on your system properly.
This error code is mostly caused when you try to print a document, image or spreadsheet through your computer, and then printing that document with your EPSON printer. So, how to fix Epson printer not activated error code 20.
There can be Different Possible Causes for the Occurrence of This not Activated Error Code 20 with Epson Printers: 
The default printer is not set
No printer installation driver is available
Issues with the device manager
Errors occurring in the system registry
To fix Epson printer not activated error code 20, the major thing you must ensure that you have set up the printer correctly. Additionally, there should be no corrupt or damaged settings on your PC that are preventing the printer from installing appropriate drivers and working properly. Here are the simple steps to fix Epson printer not activated error code 20 issue.
Easy Steps to Fix Epson Printer not Activated Error Code 20:
The very first thing you should ensure that the Epson printer should be in working mode before trying to resolve the error. Perform a quick test and print a self-test page. Once you do this, you will be able to check the USB connectivity from the printer to your computer. If you have completed the test successfully, then you can apply these stated methods in order to fix Epson printer not activated error code 20.
Step 1: Ensure the Printer You are Using is Set as Default Printer
This is the first tip you should follow to fix the error. If in case you face the same issue in the future while printing out a document. Even if you buy a new printer, then always make sure that you have set it as a default printer.
Click on Fax and Printer under Start menu.
Find out the Printers folder and proceed to Step 2 if you don’t see the desired printer icon.
However, if you successfully find that desired icon, check if it has a check mark next to it. If yes, then your printer is set to default.
If you find no check mark next to the icon then right-click the printer and click the Set as Default Printer option.
Now you can print a Windows self-test page. Just right-click the printer and select the Print Test Page option.
If the page prints successfully, exit the printer folder and then try to print a word document.
However, if this fails, try the steps stated in Step 2.
Step 2: Reinstall The USB Composite Device
You have to reinstall the USB device whenever you have to start over with a new printer device. Reinstalling the device is essentially required to ensure the proper functioning of both the device and the connected computer. To reinstall the USB device follow these steps:
Right-click the My Computer icon and select Properties option.
Click the Device Manager under the Hardware tab.
Now in the Device Manager window, double-click the Universal Serial Bus Controllers.
Right-click the Device Composite USB, click on the Uninstall option and then on OK button.
Disconnect the USB cable from your PC and reconnect it again.
Install the drivers by following the on-screen instructions of the Found New Hardware Wizard.
Click Start and then select Printer and Faxes to open the Printers folder.
Locate the EPSON printer icon and then click the Print Test Page option for the print test.
If the self-test page prints successfully, close all the windows and try to print out the desired document file.
Step 3: Uninstall And Reinstall The EPSON Software
If the above steps don't work to fix Epson printer not activated error code 20, then uninstall the Epson printer software and reinstall it. Go to the Control Panel and click on the Add / Remove Programs utility to perform this step.
Step 4: Clean Out The Registry Files
One of the major reasons behind this EPSON Printer Error 20 is the corrupted or damaged parts of the’ registry’ that prevent your computer from connecting or accessing the printer.
The registry is a storehouse of Windows system database that saves the vital settings and files required to run your computer and installed software. So in order to fix this, use a’ registry cleaner’ program and clean up the registry files.
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