Hi @JoanL08
Welcome to the HP Support Community!
Thanks for posting your query! We're here to help you get back up and running.
Thanks for laying that out so clearly—it sounds like your HP OfficeJet 4650 has gone completely unresponsive after showing error code 0xb94da7e6, and I can imagine how frustrating that must be.
This particular error often points to a critical internal hardware fault, especially when it’s followed by a total loss of power.
Please follow these steps to troubleshoot the issue:
1. Check the Power Supply:
- Ensure you are using the power cord and adapter that came with the printer.
- Verify that the power cable is securely connected to both the printer and the power outlet.
- Test the power outlet with another device to confirm it is working.
2. Reset the Printer:
- Unplug the power cord from the printer.
- Wait for 60 seconds.
- Reconnect the power cord to the printer and the power outlet.
- Press the power button on the printer to see if it turns on.
3. Perform a Hard Reset:
- Disconnect all peripheral devices connected to the printer (e.g., USB cables).
- Unplug the power cord from the printer.
- Hold down the power button for at least 30 seconds.
- Reconnect the power cord directly to the wall outlet (avoid using power strips or surge protectors).
- Press the power button to turn on the printer.
4. Check for Hardware Issues:
- Inspect the power cord and power adapter for any visible signs of damage.
- Ensure the power adapter LED (if present) is lit when connected to the outlet.
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Take care, and have an amazing day!
Regards,
Hawks_Eye
