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- HP Community
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- Printers Archive
- Re: HP Envy 7640 noise

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03-18-2015 11:05 AM
Hi Kelly,
Unfortunately, there may be a delay in getting the message out to our call agents that they need to replace noisy power supplies. You may have called prior to us getting the message out to them but i have been assured they are aware of the issue now. I will give this feedback about not getting instructions on how to replace the power supply though. Sorry about that!
-Jessica
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03-18-2015 11:08 AM
03-18-2015 11:24 AM
Ok if you have a chance can you give me the S/N of the new power supply and also the rev. ? ( the s/n should end with either an A4 or C0). The new power supplies should not have any whining or whistling sound when it goes into sleep mode although you may hear a buzz if you put your ear up to the printer.
Jessica
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03-18-2015
11:34 AM
- last edited on
03-19-2015
08:04 AM
by
george-p
Hi Jessica,
The S/N is [Moderator Edited Serial Number] Rev. D. There is definitely a whistling noise.
The old power supply S/N also ends in C0. It is [Moderator edited Serial Number]
What's the next step?
Thanks.
Jason
03-18-2015 01:21 PM - edited 03-18-2015 01:28 PM
There is definitely a delay in getting the message out to your call agents that they need to replace noisy power supplies. I've been on the phone for over an hour now (mainly on hold) with representatives that "have never heard of any issues" and insist on walking me through troubleshooting tests like making useless photo copies when this has nothing to do with it being noisy in standby. Still on hold..............
04-27-2015 07:20 AM
I experienced the same noise as others for the Envy 7640 printer and received a replacement printer. Unfortunately the replacement printer had the same power adapter the version Rev:C, which is now built into the printer. The technical service department is only allowed to send replacement printers, not parts, and the parts department will sell a part but has no way to provide a Rev:D replacement. How do I obtain this "improved" power adapter? Is there no hope for this otherwise fine printer?
09-28-2015 08:24 AM
Hello,
Please call HP Tech Support for further assistance.
If you are in US , the toll free # is 1-800-474-6836 .
If you are not in US , then log on to www.hp.com , at bottom-left corner there is a world map icon, click on it and then select the region you belong to, which would then provide support options for you for that region.
Jabzi
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Click "Accept as Solution" if it solved your problem, so others can find it.
Although I am an HP employee, I am speaking for myself and not for HP.
12-03-2015 03:30 AM
I called HP Support today for the same annoying high pitched noise and the gentleman had never heard of this problem. He took me through all of the normal trouble shooting steps. He now wants me to move the printer to another room to try a different outlet. Does nobody from HP read these boards and let the engineers know about a problem of this size? I will have to call them tomorrow and tell them what I have learned from these boards.
12-03-2015 07:13 PM
Paul
