Hi @PAGUI,
Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
The amber blinking exclamation point on the HP LaserJet MFP M234sdw typically indicates a printer error or issue that needs attention. Since there is no paper jam or obvious problem, here are a few common causes.
- Out of Paper: Check the paper tray to make sure there is paper loaded correctly. Sometimes, the sensor may not detect paper, even if it's there.
- Low or Empty Toner: The toner cartridge might be low or empty. Check the toner levels and replace the cartridge if necessary.
- Cartridge Installation: Ensure that the toner cartridge is properly installed. If it's not seated correctly, it can trigger this warning.
- Printer Door Open: Ensure that all doors, including the front door and any other compartments, are securely closed.
- Network Connectivity Issue: If your printer is connected to a network, a connectivity issue could also cause the printer to show an error. Check the network connection.
You can try resetting the printer by turning it off, waiting a few moments, and then turning it back on.
I hope this helps.
Take care and have a good day.
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Alden4
HP Support