High pitched electrical whining noise

[Paul-12TA]

I think that is a poor reply CherylO-Xerox
It is almost as worthless as telling people to turn it off!
How about saying how to access the fix or if there are any simple DIY methods. A shot in the foot CherylO-Xerox

[Paul-12TA]

This is both frustrating and interesting. Xerox support seems unhelpful just saying stop it from going into standby! I have a recently bought June 2020 Xerox-6515DNI which I am otherwise very pleased with. I am sure the noise is coming from the switched mode power supply that is dropping into the audio spectrum when it is in a low power (and otherwise quiet) state. I think this is a well known phenomenon with these power supplies under low load.

For interest. Can I ask all those who comment on discomfort with this issue in future, to state their AGE (not DoB) as high pitched loss is usual with age. I am 62 and have good hearing BUT it was my 7 year old grandson who complained about the noise. I can hear it if I try. It seems to come mostly from the perforated window front bottom left of the printer. I wonder if some acoustic wadding over there would help? There may be one component e.g. an inductor coil that could be selectively damplened e.g. with a blob of glue, that might make all the difference.

Has anyone tried that? A photo would really help. I have not disassembled mine yet.

Paul

[derekpittx]

Thank u so much for taking time to help.

[CherylO-Xerox]

Hi All,

As reported earlier this issue was escalated and here is the link to the response to the noise issue posted (May 21, 2020).  Noise Article

[Adrian77]

Hi

Has this been resloved as I am having the same noise issues?

Noticed that the noise tops when using touchscreen but back again after

Very frustrating when idle. 

Unable to have it switched on - must be a fault!

thanks

[CherylO-Xerox]

We are currently researching this issue, could you please let us know which system software or firmware version you have loaded on your machine? 

[tijmenvdk]

I have returned the Xerox to my dealer who was kind enough to offer a full refund. I exchanged the Xerox for a comparable HP model, no noise whatsoever. Specs-wise I would have prefered the Xerox, but since they are not acknowledging the issue - which to my ears is a severe defect that would also stand out in a larger office - I had no choice.

Having done some reading I found out that most countries do not have regulations on noise production above 8 kHz, so I am guessing that Xerox does not test for this issue, but is sounds like a product-related defect to me.

[jari]

My printer arrived just today and is also making the noice. It's really annying and my setup is such that the printer sits right next to me on the table.

[tijmenvdk]

A service engineer from Xerox came by today, but was unable to hear the noise (ability to hear high frequency noises is heavily age-dependent) and even though I was able to show the clear peaks at 12.3-12.5 kHz he was reluctant to start swapping out parts at random. Next step is to contact the dealer and see if I can either get a replacement unit (if that does not have the same issue) or a refund.

[tijmenvdk]

I just got my unit in today and have exactly the same issue: a high-pitched whine 12.4-12.5 kHz that starts as soon as the printer enters sleep mode. I have attached a screenshot of a spectrum analysis tool that I run on my phone. Did you get this resolved through support (I am having a hard time registering for Xerox support)?