Received an error 16 message telling me to turn the machine off & on.

[Bubbles35]

The printer was displaying a message  saying "Scanner Error 16 telling me to turn it off then back om again.

[Raj_05]

Hi @Bubbles35,

Welcome to HP Support Community.  

Thank you for posting your query, I will be glad to help you.

The error message "Scanner Error 16" typically indicates a hardware issue with your printer's scanner. This error message often appears on HP printers. To resolve the problem, you can try the following steps.

• Turn off the printer: Press the power button to turn off the printer.
• Disconnect the power cord: Unplug the power cord from the back of the printer and wait for about 30 seconds.
• Reconnect the power cord: Plug the power cord back into the printer securely.
• Turn on the printer: Press the power button to turn on the printer. Wait for it to initialize.
• Check for obstructions: Ensure that there are no paper jams or foreign objects obstructing the scanner's movement. Carefully open the scanner lid and visually inspect for any physical obstacles.
• Clean the scanner glass: If you notice any dirt, smudges, or debris on the scanner glass, gently clean it with a lint-free cloth or a glass cleaner. Avoid using abrasive materials that may scratch the glass.
• Restart your computer: Sometimes, a simple restart of your computer can help resolve communication issues between the computer and the printer.

I hope this helps. 
 

Take care and have a good day.

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Alden4
HP Support