@Serjios, Welcome to the HP Support Community!
Thanks for reaching out about your query regarding an error message!
We're thrilled to have the opportunity to assist you and provide a solution.
I see you’re facing a "Cannot Print – Expired Certificate" error on your HP Color LaserJet Pro MFP M277dw. No worries, I’ll help you get this sorted!
This issue usually happens due to an expired self-signed certificate used for secure communication. Here are some steps to resolve it:
Try This First:
Restart the Printer & Network
- Turn off the printer and unplug it.
- Restart your router.
- Wait for 30 seconds, then power the printer back on.
Update Printer Firmware
- Go to HP Support→ HP Software & Driver Downloads
- Enter your printer model and download the latest firmware update.
- Install it on the printer and restart it.
Regenerate the Certificate (If Using Secure Print Features)
- Open a web browser and type your printer’s IP address (Find it in the printer’s network settings).
- Navigate to Networking → Security → Certificates.
- Delete the expired certificate and create a new self-signed certificate.
Check Printing Settings
- On your computer, go to Control Panel → Devices and Printers.
- Right-click your HP printer and select Printer Properties.
- Under the Ports tab, ensure you’re not using a secure HTTPS port unless necessary.
A Few Quick Questions to Narrow It Down:
❓ Are you trying to print over a network (Wi-Fi) or USB?
❓ Have you recently updated your computer or printer firmware?
❓ Are you using any third-party security software or firewall that might be blocking secure communication?
Try the steps above and let me know how it goes! If the issue persists, we can dig deeper. 😊
Take care, and have an amazing day!
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Regards,
