Hi @Michaeli47,
Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
The "Printer not activated, error code 20" message is a common printer error that can occur with various printer models, including the HP Officejet 4360. This error typically indicates a problem with the printer's communication with the computer or issues related to the printer driver.
To resolve this issue, you can try the following troubleshooting steps.
Restart your Computer and Printer: Sometimes, a simple restart can resolve temporary communication glitches between the printer and computer.
Check Printer Connections: Ensure that all cables connecting the printer to the computer are securely plugged in. If you are using a USB connection, try using a different USB port on your computer.
Update or Reinstall Printer Drivers: Outdated or corrupted printer drivers can cause communication errors. To update or reinstall the printer drivers, follow these steps:
a. Go to the official HP website and search for the latest drivers for your HP Officejet 4360 printer model.
b. Download and install the latest printer drivers compatible with your computer's operating system.
c. Follow the installation instructions, and once completed, restart your computer.
Check Printer Spooler Service: The Printer Spooler service manages print jobs in the queue. If this service is not running or encountered an issue, it can lead to errors. To check the Printer Spooler service:
a. Press the Windows key + R to open the Run dialog box.
b. Type "services.msc" and press Enter to open the Services window.
c. Scroll down to find "Print Spooler" in the list.
d. Check the status of the service; it should be "Running."
e. If it's not running, right-click on "Print Spooler" and select "Start."
f. Restart your computer and try printing again.
Run Printer Troubleshooter: Most modern operating systems have built-in printer troubleshooters that can automatically identify and resolve common printer issues. You can access this feature in the Control Panel or Settings.
Check for Windows Updates: Sometimes, printer errors can be caused by system issues that are resolved through Windows updates. Make sure your operating system is up to date.
Printer Firmware Update: Check if there is a firmware update available for your HP Officejet 4360 printer on the HP support website. Firmware updates can sometimes fix known issues.
I hope this helps.
Take care and have a good day.
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Alden4
HP Support