@jocularum, Welcome to HP Support Community,
Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue
If you are experiencing issues due to an expired certificate while using the HP Smart Tank 7005 All-in-One on a Mac, here is a general guide to resolving the issue:
Update Printer Firmware:
- First, ensure that your printer firmware is up to date. Updated firmware can resolve many issues, including those related to security certificates.
- To update, go to the HP Software and Driver Downloads page on your Mac.
- Enter your printer model, select Firmware from the driver list, download it, and follow on-screen instructions for installation.
Check for Software Updates:
- Ensure that both your MacOS and the HP Smart app are up to date. This ensures compatibility and security feature support.
Reinstall the HP Smart App:
- Sometimes, reinstalling the HP Smart app can solve issues related to certificates as it ensures all components are set up correctly.
Also, refer to this guide: HP printers - 'Encryption Credentials Expired' error (macOS, iOS) | HP® Support
I hope this helps.
Please feel free to reply here if you have any questions or if you need further clarification on any of the steps.
Take care and have a good day.
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Regards,