cannot validate printer

[tony12191]

will not print on screen message states cannot validate printer. I have another computer  no problem

[zoey7886]

@tony12191, Welcome to the HP Support Community!  

Thanks for reaching out about your query regarding Printer Validation Issues! 

We're thrilled to have the opportunity to assist you and provide a solution.  

If your printer displays an error message stating "cannot validate printer" and it won't print, there are several steps you can try to resolve the issue:

1. Check the Cable Connections

• Ensure that all cable connections between the printer and the computer are secure. This includes power cables and any USB or network (Ethernet) cables.

2. Restart the Printer

• Turn off the printer using the power button.
• Wait for about 10 seconds, then turn on the printer again.
• Check if the problem persists.

3. Reset Network Parameters (if network-connected)

• If you accidentally misconfigured the printer’s network settings, they can be reset to factory default values:
  • Tap the Menu icon on the printer's control panel.
  • Select Settings > Network > Restore network settings.
• Caution: A factory-installed HP X.509 certificate will be saved during reset to factory default values. User-installed Certificate Authority (CA) certificates will not be saved.

4. Link Troubleshooting (for network-connected printers)

• Check the status lights (LEDs) beside the network connector:
  • Green light on: Successfully linked to the network.
  • Yellow light blinking: Network transmission activity.
• If both LEDs are off:
  1. Check the cable connections at both ends.
  2. Replace the cables with known good ones.
  3. Switch to another network connector in the network switch, hub, or device.

5. Print Jobs and Application Checks

• Ensure that you have selected the correct printer when sending your print job.
• Verify that the printer works correctly when printing from other applications.  

Hope this helps! 

Take care, and have an amazing day!  

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Regards,