Annoying high pitched whining noise

[DD37]

I have an Office jet 5740 multi function printer, copier, fax machine. However I don't need the Fax function as I never send faxes.

I have noticed a quiet, but very annoying fax-type high pitched whining noise coming from the machine even though I have turned off everything related to the Fax function - it doesn't even have a phone line attached, yet I still hear this noise.

Any suggestions please?

[Rainbow23]

Hi @DD37,

Welcome to HP Forums, this is a great place to get support, find answers and tips.

Thank you for posting your query, I'll be more than glad to help you.

I understand that you are facing issues with your HP OfficeJet 5740 e-All-in-One Printer wherein it makes a high pitched whining noise.

I suggest that you perform a hard reset on the unit by following the steps listed below:

1. Disconnect the fax or USB cable and then turn the printer on, if it is not already on.

2.With the printer turned on, disconnect the power cord from the rear of the printer.

3.Unplug the power cord from the wall outlet.

4.Wait at least 60 seconds.

5.Plug the power cord back into the wall outlet.
NOTE: HP recommends connecting the printer power cord directly to the wall outlet.

6.Reconnect the power cord to the rear of the printer.

7.Turn on the printer, if it does not automatically turn on. The printer might go through a warm-up period. The printer lights might flash, and the carriage might move.
8.Wait until the warm-up period finishes and your printer is idle and silent before you proceed.

If the issue still persists, then you may need to contact HP phone support for further assistance at the link: www.hp.com/contacthp
 

You have a good day ahead.