can't print, message: Expired Certificate - check printer for errors

[dblactn]

I have a MacOS Sequoia 15.5   When I try to print a doc, printing is stopped & error message is Certificate Expired

[Max3Aj]

@dblactn, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
Here's a step-by-step guide to help resolve the "Expired Certificate - Check printer for errors" issue on your HP Color LaserJet Pro MFP M277dw, especially when using macOS Sequoia 15.5:

Access the Printer's Embedded Web Server (EWS)

1. On the printer's control panel, tap the Wi-Fi icon to view the IP address.
2. Open a web browser on your Mac and enter the IP address in the address bar (e.g., http://192.168.1.100).
3. This opens the Embedded Web Server (EWS) for your printer.

Check and Correct Date & Time Settings

Incorrect date/time can cause certificate errors.

1. In the EWS, go to Settings > General Settings > Date and Time.
2. Ensure the date, time, and time zone are accurate.
3. Click Apply and restart the printer.

Generate a New Self-Signed Certificate

1. In the EWS, navigate to Security > Certificates or Web Services (depending on firmware).
2. Look for an option like Create, Renew, or Generate Self-Signed Certificate.
3. Follow the prompts to generate a new certificate.
4. Restart the printer after saving changes.

Re-add the Printer on macOS Using IP Printing (Workaround)

If the issue persists, use this workaround to bypass the certificate check:

1. Go to System Settings > Printers & Scanners.
2. Remove the existing printer.
3. Click Add Printer, Scanner, or Fax.
4. Select the IP tab.
5. Enter:
   • Address: Printer’s IP address
   • Protocol: IPP
   • Queue: Leave blank
   • Name: Any name (e.g., "HP M277dw IP")
   • Use: Select Generic PCL Printer
6. Click Add.

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Select "Yes" on the bottom left to say “Thanks” for helping! 

Max3Aj

HP Support